Research Report
for Adaptive Testing Assessment
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 2
Overview of this Research Report
The purpose of this report is to provide the validity research for the Everything DiSC
®
assessment and
profiles. Section 1 includes background and research on the assessment, specifically on the Everything
DiSC assessment, the DiSC
®
scales that are derived from this information, and the circumplex
representation of the model. Sections 2-5 provide research on the application-specific models used in
Everything DiSC Management, Everything DiSC Sales, Everything DiSC Workplace
®
, and Everything
DiSC Productive Conflict. Section 6 provides the research for the 18 additional scales in Everything DiSC
Work of Leaders
®
. Section 7 provides the research for the Everything DiSC Comparison Report. The
Appendices contain more detailed information on the Everything DiSC assessment research.
Table of Contents
Section 1: Everything DiSC
®
Assessment Research ............................................................................... 4
The DiSC
®
Model .......................................................................................................................... 4
Assessment and Scoring ............................................................................................................... 5
Overview of the Validation Process ................................................................................................ 6
Reliability ....................................................................................................................................... 7
Validity ........................................................................................................................................ 12
Summary of the Validation Results ............................................................................................... 25
Section 2: Everything DiSC
®
Management Research ........................................................................... 26
Background ................................................................................................................................ 26
The Research .............................................................................................................................. 26
Summary of the Validation Results ............................................................................................... 32
Section 3: Everything DiSC
®
Sales Research ....................................................................................... 33
Background ................................................................................................................................ 33
The Research .............................................................................................................................. 33
Summary of the Validation Results ............................................................................................... 38
Section 4: Everything DiSC Workplace
®
Research ............................................................................... 39
Background ................................................................................................................................ 39
The Research .............................................................................................................................. 39
Summary of the Validation Results ............................................................................................... 42
Section 5: Everything DiSC
®
Productive Conflict Research ................................................................... 43
Background ................................................................................................................................ 43
The Research .............................................................................................................................. 43
Summary of the Validation Results ............................................................................................... 47
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 3
Section 6: Everything DiSC Work of Leaders
®
Research ...................................................................... 48
Background ................................................................................................................................ 48
The Validation Process ................................................................................................................ 48
Internal Reliability ......................................................................................................................... 48
Intercorrelations Among the Work of Leaders Scales .................................................................... 48
Correlations Among Work of Leaders Scales and DiSC
®
Scales ................................................... 52
Section 7: Everything DiSC
®
Comparison Report Research ................................................................. 54
Background ................................................................................................................................ 54
Selection of the Continua within Each Report ............................................................................... 54
Scoring of the Continua ............................................................................................................... 55
Internal Reliability ......................................................................................................................... 56
Intercorrelations Among the Continua Scales ............................................................................... 56
Summary of the Validation Results ............................................................................................... 57
Section 8: Appendices ........................................................................................................................ 58
Appendix 1. Everything DiSC
®
Assessment Development Sample Demographics ......................... 58
Appendix 2. Percent of Variance Accounted for by Gender ........................................................... 59
Appendix 3. Correlation Between the Everything DiSC Assessment and the 16PF......................... 60
Appendix 4. Correlation Between the Everything DiSC Assessment and the NEO-PI-R ................ 62
Appendix 5. References............................................................................................................... 64
Note: If you are interested in a deeper overview of the DiSC
®
model, research, and interpretation, we
encourage you to read the Everything DiSC
®
Manualour comprehensive guide to the research that
supports the Everything DiSC suite of assessments. Available through your Everything DiSC Authorized
Partner, Amazon, and Wiley.com, this manual is an essential reference tool for anyone facilitating
Everything DiSC solutions.
Section 1: Everything DiSC
®
Assessment Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 4
Section 1: Everything DiSC
®
Assessment Research
The DiSC
®
Model
The foundation of DiSC
®
was first described by William Moulton Marston in his 1928 book, Emotions of
Normal People. Marston identified what he called four “primary emotions” and associated behavioral
responses, which today we know as Dominance (D), Influence (i), Steadiness (S), and Conscientiousness
(C). Since Marston’s time, many instruments have been developed to measure these attributes. The
Everything DiSC
®
assessment uses the circle, or circumplex, as illustrated below, as an intuitive way to
represent this model. Although all points around the circle are equally meaningful and interpretable, the
DiSC model discusses four specific reference points.
Dominance: direct, strong-willed, and forceful
Influence: sociable, talkative, and lively
Steadiness: gentle, accommodating, and soft-hearted
Conscientiousness: private, analytical, and logical
Figure 1. Circumplex DiSC Model
Section 1: Everything DiSC
®
Assessment Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 5
Although some people tend equally toward all of these regions, research indicates that most of us lean
toward one or two. Each person who takes the Everything DiSC
®
assessment is plotted on the circle,
also known as the Everything DiSC Map. The example in Figure 1 shows a person (represented by the
dot) who tends toward the D region, but also somewhat toward the i region. This represents a Di style.
This person, therefore, is probably particularly active, bold, outspoken, and persuasive, as these qualities
generally describe people who share both the D and i styles. The distance of the dot from the center of
the circle is also meaningful. People whose dots fall toward the edge of the circle, as shown in Figure 1,
are much more inclined toward their DiSC styles and are likely to choose the priorities of that style over
those of other styles. People whose dots fall close to the center of the circle are less inclined toward a
particular style and find it fairly easy to relate to the priorities of other styles.
Assessment and Scoring
The Everything DiSC assessment asks participants to respond to statements on a five-point ordered
response scale, indicating how much they agree with each statement. These responses are used to form
scores on eight scales (standardized to have a mean of zero and standard deviation of one) that are
located around the DiSC
®
circle, as shown in Figure 2. The eight scales are as follows:
D measures a direct, dominant disposition using adjectives such as aggressive, strong-willed, and
forceful.
Di measures an active, fast-paced disposition using adjectives such as dynamic, adventurous, and bold.
i measures an interactive, influencing disposition using adjectives such as sociable, lively, and talkative.
iS measures an agreeable, warm disposition using adjectives such as trusting, cheerful, and caring.
S measures an accommodating, steady disposition using adjectives such as considerate, gentle, and
soft-hearted.
SC measures a moderate-paced, cautious disposition using adjectives such as careful, soft-spoken, and
self-controlled.
C measures a private, conscientious disposition using adjectives such as analytical, reserved, and
unemotional.
CD measures a questioning, skeptical disposition using adjectives such as cynical, stubborn, and critical.
Section 1: Everything DiSC
®
Assessment Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 6
Figure 2. Eight DiSC
®
Scales
During the assessment process, the respondent’s variance on each of the eight scales is calculated. If
the variance on a particular scale is above a predetermined cut-off, the participant is presented with
additional items for that scale. In this way, the assessment can gain more certainty with regard to the
respondent’s true score. This process mirrors those used in other adaptive testing assessments.
An individual’s scores on the eight scales are then used to plot the individual on the Everything DiSC
®
Map, as represented by a dot. (Note that these eight scale scores are not directly reported in the
profiles.) The Everything DiSC Map is divided into 12 sections, or styles, each representing 30 degrees
within the circle. Feedback is largely based on the section in which the dot falls. Other factors, such as
the dot’s distance from the center of the circle and the individual’s priorities, are also reflected in the
feedback.
Overview of the Validation Process
Psychological instruments are used to measure abstract qualities that we can’t touch or see. These are
characteristics like intelligence, extroversion, or honesty. So how do researchers evaluate these
instruments? How do we know whether such tools are actually providing accurate information about
these characteristics or just generating haphazard feedback that sounds believable? Simply put, if an
instrument is indeed useful and accurate, it should meet a variety of different standards that have been
established by the scientific community. Validation is the process through which researchers assess the
Section 1: Everything DiSC
®
Assessment Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 7
quality of a psychological instrument by testing the tool against these different standards. This paper is
designed to help you understand these different standards and see how the Everything DiSC
®
assessment performs under examination.
Validation asks two fundamental questions:
1. How reliable is the tool? That is, researchers ask if an instrument measures in a consistent and
dependable way. If the results contain a lot of random variation, it is deemed less reliable.
2. How valid is the tool? That is, researchers ask if an instrument measures accurately. The more that a
tool measures what it proposes to measure, the more valid the tool is.
Note that no psychometric tool is perfectly reliable or perfectly valid. All psychological instruments are
subject to various sources of error. Reliability and validity are seen as matters of degree on continuous
scales, rather than reliable/unreliable and valid/invalid on dichotomous scales. Consequently, it is more
appropriate to ask, “How much evidence is there for the reliability of this tool?” than, “Is this tool
reliable?”
Reliability
When we talk of reliability in relation to profiles such as DiSC
assessments, then we are referring partly
to the tool’s stability and partly to its internal consistency.
Stability refers to the tool’s ability to yield the same measurements over a period of time. This is generally
tested by having the same people complete the tool’s questionnaire twice, with a suitable time interval
between the two measurements (the so-called test-retest.) The results are then compared to determine
how strongly they relate to each other (or correlate). If a person’s DiSC style remains unchanged, a stable
tool should produce results that are quite similar between two different administrations. In reality,
however, it is almost impossible to obtain perfect test-retest reliability on any sophisticated psychological
test, even if the individual in question does not change on the measured attribute. This is because test
results are influenced by a variety of extraneous factors that are unrelated to the characteristics that the
test intends to measure. For instance, someone who is tired during one testing may answer differently
than she will on a second testing when she is well-rested. Similarly, another person may respond to a
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®
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Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 8
test differently depending on the mood he is in. Generally speaking, the longer the interval between two
test administrations, the greater the chance that these random variables can artificially lower the test-
retest reliability of an instrument. In other words, the longer the time period between two testings, the
lower we would expect the test-retest reliability to be.
In practical terms, the stability of DiSC
®
(i.e., test-retest reliability) is measured by asking a group of
respondents to take a DiSC instrument and then asking those same respondents to take the same test
again at a later time. This stability can be quantified in the form of a reliability coefficient, which is a
statistic that is generated by looking at the mathematical relationship between a group’s initial scores on
an instrument and their subsequent scores. Reliability coefficients range between 0 and +1. The closer
that a correlation coefficient is to +1, the more stable the instrument is considered to be. Researchers
generally use the following guidelines to help them interpret these test-retest reliability coefficients:
coefficients above .70 are considered acceptable, and coefficients above .80 are considered very good.
The eight scales of the Everything DiSC
assessment have been measured for their test-retest reliability
over a two-week period and the following coefficients were found:
Table 1. Scale Test-Retest Reliabilities
Scale
Reliability
.86
.87
.85
.86
.88
.85
.85
.86
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®
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®
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These results suggest that results produced by the Everything DiSC
®
assessment are quite stable over
time. Consequently, test takers and test administrators should expect no more than small changes when
instrument is taken at different times. As the period between administrations increases, however, the
divergent results of these administrations will become more and more noticeable.
Note that even over very short intervals an instrument’s results can show small changes. In fact, it is
unlikely that two administrations of a test will yield the exact same results on any sophisticated
psychological instrument. When such changes are observed in DiSC
®
, however, the fundamental
interpretation of the results will usually be the same.
Internal consistency evaluates the degree of correlation among questions that profess to measure the
same thing. That is, each of the eight scales in the DiSC model is measured using a series of different
items (i.e., questions in the form of statements, such as I am direct, I tend to take the lead, I want things
to be exact, I am always cheerful). Researchers recognize that if all of the items on a given scale (e.g., the
D scale) are in fact measuring the same thing (e.g., Dominance), they should all correlate with each other
to some degree. In other words, all of the items on a scale should be consistent with each other. A
statistic called Cronbach’s alpha is usually regarded as the best method of evaluating internal
consistency.
Figure 3. D Scale Items
Section 1: Everything DiSC
®
Assessment Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
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Cronbach’s alpha expresses the degree of correlation as a specific number, which typically varies
between 0.0 and 1.0. If the value of alpha is 0.0, then there is no relationship among the
items/statements on a given scale. On the other hand, if all the statements in a questionnaire measure in
an identical fashion, then the value of alpha will be 1.0, which indicates absolute internal consistency.
Cronbach’s alpha is calculated separately for each of the assessment’s eight scales.
The following guidelines are frequently used to evaluate the quality of a scale’s internal reliability: alpha
values above .70 are generally considered acceptable and satisfactory, alpha values above .80 are
usually considered quite good, and values above .90 are considered to reflect exceptional internal
consistency. In fact, alpha values that are too high may indicate that the items on a scale are redundant
or too similar. In such cases, many of the instrument’s items may provide very little new information
about a respondent.
Alpha coefficients were calculated for a sample of 752 respondents. The demographics of this sample
are included in Appendix 1. The scales on the Everything DiSC
®
instruments demonstrate good-to-
excellent internal consistency, as shown by the alpha values listed in Table 2. All reliabilities are well above
.70, with a median of .87.
Table 2. Internal Consistency of the Everything DiSC
®
Scales
Scale
Number of Items
Cronbach’s Alpha
Di
9
.90
i
7
.90
iS
9
.86
S
10
.87
SC
12
.84
C
11
.79
CD
12
.87
D
8
.88
N = 752
Section 1: Everything DiSC
®
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Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
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Analyses were also performed to understand the impact of the extra, adaptive questions that some
respondents receive if there is a large amount of variation within their responses to a single scale’s items.
That is, if the variance in a respondent’s ratings to a scale’s items is above a certain level, the respondent
is given five to ten extra items that continue to measure the trait assessed by the scale. For convenience,
the items that all respondents receive will be called “base items” and the items that only inconsistent
responders receive will be called “extra items.
Table 3 shows the internal reliabilities for only those respondents who gave the most inconsistent
responses to a given scale’s items, measured by a high degree of response variance. In other words,
these are respondents whose scale preferences seemed most unclear. In the first bold column are the
alphas for those respondents using both the base items and extra items (which reflects how these
respondents are measured in the actual assessment). In the second bold column are the alphas for
those respondents using only the base items. With only the base items, the median alpha in this
subsample is .62. The median alpha when the extra items are included is .77. By comparing these two
columns, we can see the internal consistency is much higher for these unclear respondents when they
receive the extra items. In essence, these extra items are used to further gauge the target trait when the
normal assessment has produced unclear or variable results. The final column shows the percentage of
respondents in the sample who received extra items on a given scale. On average, 24% of respondents
received extra items on an individual scale.
Section 1: Everything DiSC
®
Assessment Research
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®
assessments. 12
Table 3. Alpha Coefficients for High Variance Respondents
With Extra Items
Without Extra Items
Scale
Alpha
N
# Items
Alpha
N
# Items
%
Receiving
Extra
Items
Di
.80
170
14
.63
170
9
23
i
.82
105
12
.60
105
7
14
iS
.76
214
14
.58
214
9
28
S
.78
174
15
.64
174
10
23
SC
.76
223
17
.64
223
12
30
C
.78
261
19
.61
261
11
35
CD
.74
188
22
.63
188
12
25
D
.68
116
13
.34
116
8
15
Validity
As mentioned, validity indicates the degree to which a tool measures that which it has been designed to
measure. Assessing the validity of a psychological tool that measures abstract qualities (like intelligence,
extroversion, or honesty) can be tricky. There are, however, a number of basic strategies that
researchers use to answer the question, “How well is this instrument measuring what it says it’s
measuring?” The validation strategies discussed here fall under the heading of construct validity.
Construct Validity
Construct validity examines the validity of a tool on a highly theoretical level. A construct is an abstract
idea or concept (such as intelligence, dominance, or honesty) that is used to make sense of our
experience. The Di scale of the Everything DiSC
®
instruments, for example, measures a particular
construct (i.e., the tendency to be bold, adventurous, and fast paced). This boldconstruct, in turn, is
theoretically related to a variety of other constructs. For instance, it is reasonable to assume that
someone who is very bold will not be particularly cautious in nature. Thus, bold tendencies and cautious
tendencies are theoretically linked in a negative manner. Consequently, if our measure of a bold tendency
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®
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®
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has high validity, people scoring high on the Di scale should score relatively low on a scale measuring
cautiousness, such as the SC scale. This is essentially what researchers do when they examine
construct validity. First, they specify a series of theoretical relationships (e.g., the construct of boldness is
theoretically related to the constructs of X, Y, and Z). Then, they test these theoretical relationships
empirically to see if the relationships actually exist. If the proposed relationships do exist, the instrument
is thought to have higher validity.
Scale Intercorrelations
As you might imagine, there are a variety of different ways to test construct validity. First, we can examine
the validity of an instrument as a whole. Instruments like the Everything DiSC
®
assessment propose an
underlying model in which the scales have a specific relationship to each other. Researchers examine the
actual relationship among the scales to see if they reflect the theoretical relationship proposed by the
model.
The DiSC
®
model proposes that adjacent scales (e.g., Di and i) will have moderate correlations. That is,
these correlations should be considerably smaller than the alpha reliabilities of the individual scales. For
example, the correlation between the Di and i scales (.50) should be substantially lower than the alpha
reliability of the Di or i scales (both .90). On the other hand, scales that are theoretically opposite (e.g., i
and C) should have strong negative correlations. Table 4 shows data obtained from a sample of 752
respondents who completed the Everything DiSC assessment. The correlations among all eight scales
show strong support for the model. That is, moderate positive correlations among adjacent scales and
strong negative correlations are observed between opposite scales.
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®
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®
assessments. 14
Table 4. Scale Intercorrelations
Scale
D
Di
i
iS
S
SC
C
CD
D
.88
Di
.46
.90
i
.14
.50
.90
iS
-.37
.04
.47
.86
S
-.69
-.31
.03
.57
.87
SC
-.62
-.73
-.56
-.13
.34
.84
C
-.19
-.43
-.70
-.49
-.18
.45
.79
CD
.42
-.14
-.37
-.68
-.66
-.08
.26
.87
Cronbach’s alpha reliabilities are shown in bold along the diagonal, and the correlation coefficients among scales are shown
within the body of the table. Correlation coefficients range from -1 to +1. A correlation of +1 indicates that two variables are
perfectly positively correlated such that as one variable increases, the other variable increases by a proportional amount. A
correlation of -1 indicates that two variables are perfectly negatively correlated, such that as one variable increases, the other
variable decreases by a proportional amount. A correlation of 0 indicates that two variables are completely unrelated; N=752, as
shown in Appendix 1.
Because the Everything DiSC
®
assessment model proposes that the eight scales are arranged as a
circumplex, an even more strict set of statistical assumptions are required of the data. The pattern of
correlations for a given scale are expected to be arranged in a particular order. As can be seen in Table
5, the strongest theorized correlation for a given scale is labeled r
1
. The second strongest is labeled r
2
,
and so on. In this case, r
4
represents the correlation with a theoretically opposite scale. Consequently, r
4
should be a reasonably strong negative correlation. For each scale, we should observe the following
relationship if the scales support a circumplex structure: r
1
> r
2
> r
3
> r
4
.
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®
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®
assessments. 15
Table 5. Expected Scale Intercorrelations
Scale
D
Di
i
iS
S
SC
C
CD
D
1.00
Di
r
1
1.00
i
r
2
r
1
1.00
iS
r
3
r
2
r
1
1.00
S
r
4
r
3
r
2
r
1
1.00
SC
r
3
r
4
r
3
r
2
r
1
1.00
C
r
2
r
3
r
4
r
3
r
2
r
1
1.00
CD
r
1
r
2
r
3
r
4
r
3
r
2
r
1
1.00
Looking at Table 6, we do, in fact, observe a r
1
> r
2
> r
3
> r
4
pattern for each scale. In addition, we can
examine the magnitude of these correlations in comparison to the theoretically expected magnitudes.
The predicted magnitudes of r
1
, r
2
, r
3
, r
4
under a circumplex structure are listed in Table 4, as
described by Wiggins (1995). The actual r
x
values are the median correlations for a given r
x
. Although
the actual and predicted values are not exactly the same (a near impossible standard for practical
purposes), the magnitude of the actual and predicted correlation values is quite similar, thus providing
additional support for the DiSC
®
circumplex model and the ability of the Everything DiSC
®
assessment to
measure this model.
Table 6. Actual and Predicted Scale Relationships
r
1
>
r
2
>
r
3
>
r
4
.45
>
-.11
>
-.46
>
-.69
Actual (median)
.42
>
.03
>
-.36
>
-.73
Predicted
The Dimensionality of the DiSC
®
Model: Multidimensional Scaling (MDS)
A statistical technique called multidimensional scaling also adds support to the DiSC model as a
circumplex. This technique has two advantages. First, it allows for a visual inspection of relationship
among the eight scales. Second, this technique allows researchers to look at all of the scales
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®
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simultaneously. In Figure 4, scales that are closer together have a stronger positive relationship. Scales
that are farther apart are more dissimilar. The circumplex DiSC
®
model predicts that the eight scales will
be arranged in a circular format at equal intervals.
As can be seen in Figure 4, the scales are arranged in a way that is expected by the DiSC model. (Keep
in mind that the original MDS rotation is presented below and this rotation is arbitrary.) Although the eight
scales do not form a perfectly equidistant circle (as predicted by the model), this theoretical ideal is nearly
impossible to obtain with actual data. The actual distance between the scales, however, is roughly equal,
providing strong support for the model and its assessment.
Figure 4. MDS Two-Dimensional Solution
Note: Stress = .01326; RSQ = .99825; N = 752
As can be seen above, all scales are closest to the scales that are theoretically adjacent to them in the
model. For instance, the Di is closest to the D scale and i scale, as predicted by the model. In addition,
scales that are theoretically opposite (e.g., i and C) are generally furthest away from each other on the
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®
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plot. Consequently, this analysis adds strong support for the two-dimensional DiSC
®
model and the
ability of the Everything DiSC
®
assessment to measure that model.
Additionally, the S-stress of the model is .01326 and the RSQ value is .99825. These values reflect the
ability of a two-dimensional model to fit the data. Lower S-stress values are preferred (with a minimum of
0) and higher RSQ values are preferred (with a maximum of 1). Both of these values are almost ideal in
the data, suggesting that the two-dimensional DiSC model fits the participant data exceptionally well.
The Dimensionality of the Circumplex DiSC
®
Model: Factor Analysis
(Note that this section may require some statistical background to understand fully.)
To further explore the dimensionality of the model, a principle components factor analysis was performed
on all eight scales using a varimax rotation. The eigenvalues clearly reinforce the two-dimensional
structure underlying the eight scales, as shown in Table 7. Only two components demonstrate
eigenvalues above one, and both of these are well above one. Further, components 3 through 8 all have
eigenvalues that decrease smoothly and are meaningfully below one. Consequently, regardless of
whether we use Kaiser’s Criterion or a scree plot method of determining the number of factors to extract,
the number of retained factors is two, as predicted by the model.
Table 7. Factor Analysis Eigenvalues
Component
Eigenvalues
1
3.10
2
2.95
3
0.60
4
0.38
5
0.37
6
0.31
7
0.23
8
0.04
N = 752
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®
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®
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The rotated factor loadings are listed in Table 8. (Note that the loadings were rotated such that the
loadings reflect the original DiSC
®
rotation.) The pattern of loadings is as expected for a circumplex
model, as listed under the Ideal Loadings column. That is, with a circumplex model, we would expect
that some scales would have high loadings on one component and near zero loadings on the other
component (i.e., Di, iS, SC, and CD) and some scales would have moderately high loadings on both
components (e.g., D, i, S, and C).
Table 8. Factor Loadings for the Eight DiSC
®
Scales
Actual Loadings
Ideal Loadings
Scale
Vertical
Dimension
Horizontal
Dimension
Vertical
Dimension
Horizontal
Dimension
D
.51
-.73
.707
-.707
Di
.83
.09
1.000
.000
i
.56
.67
.707
.707
iS
.06
.88
.000
1.000
S
-.76
.48
-.707
.707
SC
-.90
-.03
-1.000
.000
C
-.61
-.56
-.707
-.707
CD
-.09
-.85
-.000
1.000
Further, the pattern of negative and positive loadings is as expected. For example, the i and C scales
share no common dimensions, and consequently show an opposing pattern of negative loadings (the C
scale) and positive loadings (the i scale). However, the D and i scales would be expected to share one
component but be opposite on the other component. This is what we observe, since both scales are
negatively loaded on component 1, but have opposite loadings on component 2.
Table 9 shows the ideal and actual angular locations for the eight DiSC scales. The deviation column
indicates that the actual angles are very similar to the ideal angles. The absolute average deviation is 3.8,
which is lower than many of the interpersonal-based instruments currently available. Vector length, as
shown in the last column of Table 9, reflects the extent to which the scale is represented by the two
underlying dimensions (Kiesler et al., 1997). These values can range from 0.0 to 1.0. A length of .80 is
Section 1: Everything DiSC
®
Assessment Research
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®
assessments. 19
considered very good and a length above .90 is considered exceptional. The mean vector length of .87
suggests that the scales have a strong relationship with the dimensions they are intended to measure.
Table 9. Angular Locations for the Eight DiSC
®
Scales
Scale
Actual Angle
Ideal Angle
Deviation
Vector Length
D
325
315
10
.89
Di
6
0
6
.83
i
40
45
-5
.87
iS
86
90
-4
.88
S
122
135
-13
.90
SC
182
180
2
.90
C
223
225
-2
.82
CD
276
270
6
.85
Correlations with Other Assessments of Personality
Another method used to provide evidence of construct validity involves correlating an assessment with
other well-respected assessments of similar traits. For this purpose, a group of respondents took the
Everything DiSC
®
assessment and two established measures of personality: the NEO
®
Personality
Inventory Revised (NEO PI-R
) and the Sixteen Personality Factor Questionnaire (16PF
®
).
The NEO PI-R is a 240-item assessment designed to measure the five-factor model of personality:
Extraversion, Agreeableness, Conscientiousness, Neuroticism, and Openness to Experience (McCrae &
Costa, 2010). The 16PF is a 185-item assessment designed to measure sixteen primary personality
traits, as well as the five factor model of personality (IPAT, 2009). The assessment also provides scores
on nineteen additional scales in the following areas: self-esteem and adjustment, vocational interests,
social skills, leadership, and creativity.
The correlations among the Everything DiSC scales and the NEO PI-R and the 16PF are shown in
Appendices 3 and 4. For the purposes of interpretation, a summary is provided here. For each
Everything DiSC scale, the ten strongest correlations with either the NEO PI-R or 16PF are listed.
Section 1: Everything DiSC
®
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®
assessments. 20
The Di Scale. The scales listed in Table 10 reflect the active, socially influential disposition that is
measured by the Di scale. Although not listed in the table, this scale also demonstrated high correlations
with the Excitement Seeking (r=.51) and Achievement Striving (r=.48) scales of the NEO PI-R
. This
reflects the adventurous, pioneering aspects of the Di scale.
The i Scale. The scales listed in Table 11 reflect the extraverted, lively disposition that is measured by the
i scale, as well as some elements of social poise or competence. Although not listed in the table, this
scale also demonstrated high correlations with Positive Emotions (r=.50) and Self-consciousness (r= -.48)
scale of the NEO PI-R. The i scale also had high correlations with Social (r=.56) and Enterprising (r=.53)
vocational interest scales.
The iS Scale. The scales listed in Table 12 reflect the warm, accepting, and empathic disposition
measured by the iS scale. Although not listed in the table, the iS scale also had significant correlations
with the Emotional Sensitivity (r= .42) scale of the 16PF
®
. Significant negative correlations with the Angry
Hostility (r= -.46; NEO PI-R)), Tension (r= -.43; 16PF), and Anxiety (r= -.41; 16PF) scales reflect the more
cheerful, easy-going disposition measured by the iS scale.
Table 10. Strongest Correlations Between the Di Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Assertiveness
NEO PI-R
.68
Creative Potential
16PF
.62
Independence
16PF
.60
Activity
NEO PI-R
.57
Emotional Expressivity
16PF
.56
Social Expressivity
16PF
.55
Dominance
16PF
.54
Social Control
16PF
.53
Enterprising
16PF
.53
Social Boldness
16PF
.52
Section 1: Everything DiSC
®
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®
assessments. 21
Table 11. Strongest Correlations Between the i Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Social Expressivity
16PF
.74
Extraversion
16PF
.70
Social Boldness
16PF
.70
Extraversion
NEO PI-R
.69
Social Adjustment
16PF
.68
Gregariousness
NEO PI-R
.65
Social Control
16PF
.62
Liveliness
16PF
.62
Warmth
NEO PI-R
.60
Leadership Potential
16PF
.60
Table 12. Strongest Correlations Between the iS Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Warmth
NEO PI-R
.61
Positive Emotions
NEO PI-R
.57
Empathy
16PF
.56
Trust
NEO PI-R
.55
Altruism
NEO PI-R
.53
Agreeableness
NEO PI-R
.52
Extraversion
NEO PI-R
.52
Extraversion
16PF
.51
Warmth
16PF
.49
Compliance
NEO PI-R
.47
The S Scale. The scales listed in Table 13 reflect the agreeable, peaceful, and accommodating
disposition measured by the S scale. The original conceptualization of the S scale also included a
Section 1: Everything DiSC
®
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®
assessments. 22
number of submissive tendencies, which is reflected by correlations with Compliance, Independence,
and Dominance. It is worth noting the Straightforwardness scale is designed to measure sincerity or
genuineness (rather than directness or bluntness), which is consistent with the S construct.
The SC Scale. The scales listed in Table 14 reflect the self-controlled, cautious, and passive disposition
measured by the SC scale. Although not listed in the table, the SC scale had significant positive
correlations with a number of scales, particularly on the NEO PI-R
. These include Self-Consciousness
(r=.44), Compliance (r=.41), and Modesty (r=.37).
The C Scale. The scales listed in Table 15 reflect the introverted and emotional reserved disposition
measured by the C scale. Although not listed in the table, the C scale had significant positive correlations
with the Self-reliance (r=.51; 16PF
®
), Self-consciousness (r=.41; NEO PI-R), and Privateness (r=.33;
16PF) scales. Correlations with the Order (r=.07; NEO PI-R), Perfectionism (r=.15;16PF), and
Conscientiousness (r=.11; NEO PI-R) scales were significant, but smaller than expected. It is important to
note that the C scale is designed to measure a reserved, methodical, analytical disposition rather than
directly measuring a preference for order.
Table 13. Strongest Correlations Between the S Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Agreeableness
NEO PI-R
.67
Compliance
NEO PI-R
.65
Altruism
NEO PI-R
.47
Trust
NEO PI-R
.39
Straightforwardness
.39
.39
Creative Potential
16PF
-.32
Independence
16PF
-.40
Dominance
16PF
-.45
Tension
16PF
-.45
Angry Hostility
NEO PI-R
-.53
Section 1: Everything DiSC
®
Assessment Research
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®
assessments. 23
Table 14. Strongest Correlations Between the SC Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Dominance
16PF
-.63
Social Adjustment
16PF
-.64
Enterprising
16PF
-.65
Social Boldness
16PF
-.66
Social Expressivity
16PF
-.67
Social Control
16PF
-.67
Emotional Expressivity
16PF
-.69
Independence
16PF
-.71
Creative Potential
16PF
-.72
Assertiveness
NEO PI-R
-.75
Table 15. Strongest Correlations Between the C Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Liveliness
16PF
.61
Warmth
NEO PI-R
.57
Social
16PF
.56
Empathy
16PF
.55
Gregariousness
NEO PI-R
.53
Social Boldness
16PF
.52
Social Adjustment
16PF
.52
Extraversion
NEO PI-R
.51
Social Expressivity
16PF
.49
Extraversion
16PF
.47
Section 1: Everything DiSC
®
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®
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The CD Scale. The scales listed in Table 16 reflect the skeptical, challenging disposition measured by the
CD scale. Although not listed in the table, the CD scale had significant positive correlations with the
Vigilance (r=.31; which measures an expectation of being misunderstood or taken advantage of) and
Self-reliance (r=.30; which is opposed with group-orientation) scales of the 16PF
®
.
The D Scale. The scales listed in Table 17 reflect the forceful, outspoken disposition that is measured by
the D scale. Although not listed in the table, the D scale also had significant positive correlations with the
Social Boldness (r=.32; 16PF) and Activity (r=.32; NEO PI-R
) scales. As mentioned earlier, the
Straightforwardness scale of the NEO PI-R is designed to measure sincerity rather than bluntness. Low
scorers are described as more likely to manipulate others or to be cunning.
Table 16. Strongest Correlations Between the CD Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Tension
16PF
.55
Angry Hostility
NEO PI-R
.51
Anxiety
16PF
.45
Positive Emotions
NEO PI-R
-.41
Altruism
NEO PI-R
-.42
Warmth
NEO PI-R
-.43
Empathy
16PF
-.44
Trust
NEO PI-R
-.47
Agreeableness
NEO PI-R
-.48
Compliance
NEO PI-R
-.55
Section 1: Everything DiSC
®
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®
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Table 17. Strongest Correlations Between the D Scale and the NEO PI-R
TM
and 16PF
®
Scale
Instrument
r
Dominance
16PF
.63
Independence
16PF
.60
Assertiveness
NEO PI-R
.55
Creative Potential
16PF
.51
Emotional Expressivity
16PF
.50
Enterprising
16PF
.44
Social Control
16PF
.35
Straightforwardness
NEO PI-R
-.35
Agreeableness
NEO PI-R
-.58
Compliance
NEO PI-R
-.63
Summary of the Validation Results
Evaluation of the Everything DiSC
®
assessment indicates that there is strong support for the reliability and
validity of this tool. Analyses suggest that the scales’ reliabilities are in the good-to-excellent range, with a
median coefficient alpha of .87 and a median test-retest reliability of .86. Analyses examining the validity
of the tool were also very favorable. The circumplex structure of the assessment conforms well to
expectations, as assessed by multidimensional scaling, scale intercorrelations, and factor analysis. The
relationships among the eight scales are highly supportive of the circumplex structure and strongly reflect
the expected pattern of correlations hypothesized under the DiSC
®
model. Correlations between the
Everything DiSC scales and the scales of the NEO PI-R
and the 16PF
®
provide additional support for
the validity of the assessment.
Section 2: Everything DiSC
®
Management Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 26
Section 2: Everything DiSC
®
Management Research
Background
Each Everything DiSC
®
instrument uses an application-specific model to give context to the report
interpretation. The management model in the Everything DiSC Management Profile, shown in Figure 5,
helps managers understand how they approach their work. The eight words around the map indicate the
top priorities of managers with different DiSC
®
styles. For example, the priorities of “S” managers are
Support, Reliability, and Collaboration. The development of this model was based on empirical data
gathered from both managers and employees.
The Research
First, participants with management experience (N=427) were presented with a series of statements
describing management tasks and asked the importance of each when working as a manager. For
instance, participants were asked to rate the importance of “Setting high expectations” on a five-point
scale, ranging from “Not Important” (1) to “Crucially Important” (5). Statements were grouped into eight
categories that represent the eight priorities on the circle above. Each category contained four to five
statements. The 36 individual statements are shown in Table 18.
Figure 5. Everything DiSC Management Model
Section 2: Everything DiSC
®
Management Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 27
Table 18. Statements Used to Measure the Priorities from the Manager’s Perspective
Priority
Statement
Action
Maintaining forward momentum on your team
Creating goals for the team that are inspiring
Getting new projects moving quickly
Encouraging the team to maintain an energetic pace
Encouraging people to take risks
Encouragement
Celebrating group victories
Praising people for good work
Letting people know that you're optimistic about their progress
Creating enthusiasm in the team
Collaboration
Building a sense of collaboration
Encouraging teamwork
Providing feedback in a way that's warm and understanding
Making sure that everyone's getting along
Support
Letting people know that you are there to help them out whenever they need it
Checking in with people to make sure they are doing ok
Taking time to listen to people's concerns and fears
Letting people know that you're patient with their mistakes
Reliability
Creating a stable work environment
Being consistent in your management
Checking to make sure people have the resources they need
Giving people time to adjust to changes
Providing people with clear guidelines for doing their work
Objectivity
Maintaining objectivity in your management decisions
Ensuring that decisions are based on logical analysis
Emphasizing the need for quality work
Making accuracy a top priority
Separating out emotions from facts when making decisions
Section 2: Everything DiSC
®
Management Research
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®
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Table 18. Continued
Priority
Statement
Challenge
Challenging ideas that don't make sense to you
Questioning employee's actions when they don't seem logical to you
Letting people know when they aren't performing up to your standards
Questioning procedures or practices that aren't efficient
Providing people with new challenges
Drive
Constantly pushing yourself and others toward results
Creating a sense of urgency in the team
Getting results that are practical and concrete
Setting high expectations
After participants rated each statement, the average response for statements within a priority category
was calculated. Consequently, all participants had a category score for all eight priorities. These category
scores were then ipsatized by subtracting a mean score across all statements. Ipsatizing controls for
response bias and ensures that the category scores reflect the relative importance of the eight priorities
for a particular participant.
The category scores were then submitted to a multidimensional scaling analysis. This analysis allows
researchers to look at the relationship among the eight categories and determine if the categories relate
to each other in the manner predicted by the model. The results of the analysis are presented in Figure 6.
Categories that are closer together share more in common and categories that are further apart are more
dissimilar.
As expected, the eight priorities form a circular shape, with the priorities arranged as predicted by the
management model. That is, the sequence around the circle proceeds as follows: Action,
Encouragement, Collaboration, Support, Reliability, Objectivity, Challenge, and Drive. Although the eight
scales do not form a perfectly equidistant circle (as predicted by the model), this theoretical ideal is nearly
impossible to obtain with actual data.
Section 2: Everything DiSC
®
Management Research
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®
assessments. 29
To capture management priorities from the perspective of employees, a second study was performed. In
this study, 699 participants were asked to think of their previous experiences reporting to a manager.
They were then presented with a series of management tasks and asked to rate how important each was
for a manager to perform. For instance, participants rated how important “Taking time to listen to my
concerns and fears” was on a 5-point scale ranging from “Not Important” (1) to “Crucially Important” (5).
Again, statements were grouped into eight categories that represent the eight priorities in Figure 5. Each
category contained three to five statements. As described in the previous study, statement ratings within
a priority category were averaged and ipsatized to arrive at a category score. The individual statements
used in this study are shown in Table 19.
Figure 6. Multidimensional Scaling Results for Managers
Section 2: Everything DiSC
®
Management Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 30
Table 19. Statements Used to Measure the Priorities from an Employee’s Perspective
Priority
Statement
Drive
Setting high expectations
Creating a sense of urgency in the team
Getting quick results
Constantly pushing himself/herself and others toward results
Action
Maintaining forward momentum on our team
Creating goals for the team that are inspiring
Encouraging the team to maintain an energetic pace
Encouraging me to take risks
Encouragement
Celebrating group victories
Letting me know that he/she is optimistic about my progress
Creating enthusiasm in the team
Collaboration
Providing feedback in a way that's warm and understanding
Building a sense of collaboration
Encouraging teamwork
Making sure that everyone's getting along
Support
Letting me know that he/she is there to help me out whenever I need it
Checking in with me to make sure I'm doing ok
Taking time to listen to my concerns and fears
Letting me know that he/she is patient with my mistakes
Reliability
Creating a stable work environment
Being consistent in his/her management
Checking to make sure I have the resources I need
Giving me time to adjust to changes
Providing me with clear guidelines for doing my work
Section 2: Everything DiSC
®
Management Research
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®
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Table 19. Continued
Priority
Statement
Objectivity
Emphasizing the need for quality work
Ensuring that decisions are based on logical analysis
Maintaining objectivity in his/her management decisions
Making accuracy a top priority
Separating out emotions from facts when making decisions
Challenge
Challenging ideas that don't make sense to him/her
Questioning employee's actions when they don't seem logical
Questioning procedures or practices that aren't efficient
Providing me with new challenges
The priority category scores were then submitted to a multidimensional scaling analysis. The results of
this analysis are shown in Figure 7.
Figure 7. Multidimensional Scaling Results for Employees
Section 2: Everything DiSC
®
Management Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 32
As with the manager data, the priority categories are arranged in a circle. Further, the categories are
plotted in the expected order: Action, Encouragement, Collaboration, Support, Reliability, Objectivity,
Challenge, and Drive. The categories are not spaced in a perfectly even manner, but, again, this standard
is almost impossible to meet with real data.
Summary of the Validation Results
Overall, both of these studies provide strong support for the Everything DiSC
®
Management model. Two
separate data sets addressing management priorities from the perspective of both managers and
employees confirm that the eight priorities are arranged in a circular fashion in the predicted order. This
type of empirical support should give managers confidence that the Everything DiSC Management model
accurately reflects real-life management environments and is useful for understanding various
approaches to management.
Section 3: Everything DiSC
®
Sales Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 33
Section 3: Everything DiSC
®
Sales Research
Background
The application-specific model used in the Everything DiSC
®
Sales Profile, shown in Figure 8, helps
salespeople better understand themselves and their customers. In this model, the eight words around
the map indicate the priorities of both customers and salespeople of different DiSC
®
styles during sales
interactions. For example, the priorities of “i” salespeople and customers are Enthusiasm, Action, and
Relationships. The development of this model was based on empirical data gathered from both
customers and salespeople.
The Research
First, participants (N=1,047) were presented with a series of statements and asked the importance of
each when working with a salesperson. For instance, participants were asked to rate the importance of
“Working with a salesperson who is friendly and personable” on a five-point scale, ranging from Not
Important (1) to Vitally Important (5). Statements were grouped into eight categories that represent the
eight priorities on the circle in Figure 8. Each category contained two to four statements. The individual
statements for each category are shown in Table 20.
Figure 8. Everything DiSC Sales Model
Section 3: Everything DiSC
®
Sales Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 34
Table 20. Statements Used to Measure the Priorities from the Customer’s Perspective
Priority
Statement
Action
Being assured that things will happen quickly and easily once I make a decision
Getting things moving as soon as possible after the sale
Enthusiasm
Seeing a product/service that I'm excited about
Working with salespeople who are enthusiastic and passionate about the
product/service
Relationships
Working with salespeople who are friendly and personable
Working with salespeople that I connect with
Knowing that the salesperson doesn't see me as just another sales opportunity
Working with a sales person I enjoy talking to
Sincerity
Working with salespeople who are sincere
Working with salespeople who I sense are genuinely looking out for my best
interest
Working with a salesperson who genuinely seems to care about my needs and
concerns
Working with a salesperson who is a good listener
Dependability
Being sure that the salesperson is dependable
Working with salespeople who are thorough, careful, and responsible
Quality
Being sure that I'm getting the highest quality
Seeing demonstrations of the quality of the product/service
Competency
Being sure that the salesperson is competent to handle my business
Working with salespeople who are experts in their field
Results
Having salespeople show me how I can get immediate, practical results
Seeing how the product/service can have a big impact on my success
Seeing the immediate benefits of the product/service
After participants rated each statement, the average response for statements within a priority category
was calculated. Consequently, all participants had a category score for all eight priorities. These category
scores were then ipsatized by subtracting a mean score across all statements. Ipsatizing controls for
response bias and ensures that the category scores reflect the relative importance of the eight priorities
for a particular participant.
Section 3: Everything DiSC
®
Sales Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 35
The category scores were then submitted to a multidimensional scaling analysis. This analysis allows
researchers to look at the relationship among the eight categories and determine if the categories relate
to each other in the manner that the model predicts. The results of the analysis are presented in Figure 9.
Categories that are closer together share more in common, and categories that are farther apart are
more dissimilar.
Figure 9. Multidimensional Scaling Results for Customers
As expected, the eight priorities are arranged in a circular shape, with the priorities arranged in the
manner predicted by the sales model. That is, the sequence around the circle proceeds as follows:
Action, Enthusiasm, Relationships, Sincerity, Dependability, Quality, Competency, and Results. Although
the eight scales do not form a perfectly equidistant circle (as predicted by the model), this theoretical
ideal is nearly impossible to obtain with actual data.
Because the Everything DiSC
®
Sales model speaks to the priorities of salespeople as well as customers,
a second sample of data was collected on salespeople (N=1,800).
Section 3: Everything DiSC
®
Sales Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 36
In this study, salespeople were presented with sales behaviors such as “Showing the customer that
you're an expert in your field,” and asked to rate the importance of each statement on a five-point scale,
ranging from Not Important (1) to Vitally Important (5). Each category contained three to five
statements. Sample statements for each category are shown in Table 21.
Table 21. Statements Used to Measure the Priorities from the Salesperson’s Perspective
Priority
Statement
Action
Showing the customer that you can make things happen quickly and easily
Helping the customer see how they can use your product/service
immediately
Inspiring the customer that your product/service can help them right away
Enthusiasm
Getting the customer excited about your product/service
Creating enthusiasm in the customer
Having fun with the customer
Relationships
Developing a comfortable, friendly relationship with the customer
Building a personal connection with the customer
Being friendly, warm, and personable
Showing that you care about the customer as a person, not just as a
customer
Showing the customer that you empathize with his/her needs and concerns
Sincerity
Showing that you're sincere
Showing that you're genuinely looking out for the customer's best interest
Showing that you truly care about the customer's problems
Dependability
Showing that you and your product/service are a dependable choice
Showing that you'll be available to provide support after the sale
Showing that you're thorough and careful
Table 21. Continued
Priority
Statement
Section 3: Everything DiSC
®
Sales Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 37
Quality
Explaining the quality of your product/service
Showing that you can back up your claims with evidence
Making sure customers get all of the information they need to make an
informed decision
Competency
Demonstrating your expertise on the product/service you're selling
Showing the customer that you're an expert in your field
Showing the customer that you can get things done without wasting a lot of
their time
Backing up claims with specific information
Results
Showing the customer how you can get them immediate, practical results
Showing the customer that you can have an impact on their success
Getting the customer to see the benefits of your product/service
As described in the previous study, statement ratings within a priority category were averaged and
ipsatized to arrive at a category score. The category scores were then submitted to a multidimensional
scaling analysis. The results of this analysis are shown in Figure 10.
As with the customer data, the priority categories are arranged in a circle. Further, the categories are
plotted in the expected order: Action, Enthusiasm, Relationships, Sincerity, Dependability, Quality,
Competency, and Results. The categories are not spaced in a perfectly even manner, but again, this
standard is almost impossible to meet with real data.
Section 3: Everything DiSC
®
Sales Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 38
Figure 10. Multidimensional Scaling Results for Salespeople
Summary of the Validation Results
Overall, both of these studies provide strong support for the Everything DiSC Sales
®
model. Two
separate data sets addressing both customers and salespeople’s priorities confirm that the eight
priorities are arranged in a circular fashion in the predicted order. This type of empirical support should
give salespeople confidence that the Everything DiSC Sales model accurately reflects real-life sales
environments and is useful for understanding themselves and their customers.
Section 4: Everything DiSC Workplace
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 39
Section 4: Everything DiSC Workplace
®
Research
Background
The application-specific model used in the Everything DiSC Workplace
®
Profile, shown in Figure 11, helps
people better understand how they approach their work. In this model, the eight words around the map
indicate the work priorities of people with different DiSC
®
styles. For example, the top priorities of people
with the “C” style are Accuracy, Stability, and Challenge. The development of this model was based on
empirical data gathered from working adults.
Figure 11. Everything DiSC Workplace Model
The Research
First, participants (N=2,270) were presented with a series of statements describing work tasks and asked
to rate the importance of each task to job effectiveness. For instance, participants were asked to rate the
importance of “Speaking up about problems” on a five-point scale, ranging from “Not Important” (1) to
“Crucially Important” (5). Statements were grouped into eight categories that represent the eight priorities
on the circle in Figure 11. Each category contained three statements that were used to form a scale. The
24 individual statements are shown in Table 22.
Section 4: Everything DiSC Workplace
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 40
After participants rated each statement, these statements were ipsatized by subtracting a mean score
across all statements. Ipsatizing controls for response bias and ensures that the item ratings reflect the
relative importance of the eight priorities for a particular participant. The average ipsatized response for
statements within a priority category was then calculated. Consequently, all participants had a category
score for all eight priorities.
Table 22. Statements Used to Measure Each of the Eight Workplace Priorities
Priority
Statement
Action
Remaining active
Being on the lookout for new opportunities
Being open to taking risks
Enthusiasm
Showing enthusiasm for the projects you are working on
Being optimistic about the work you are doing
Encouraging people to have fun at work
Collaboration
Communicating frequently with the people you work with
Taking opportunities to collaborate with other people
Encouraging teamwork
Support
Letting people know that you are there to help out if they need it
Being patient with other people's mistakes
Delivering feedback in a tactful manner
Stability
Working at a consistent, steady pace
Creating schedules for projects
Following established rules or procedures
Accuracy
Taking extra time to ensure quality
Making decisions that are based on logic, not emotion
Taking time to analyze choices in-depth before making a decision
Challenge
Speaking up about problems
Questioning ideas that don't seem logical
Questioning procedures or practices that aren't efficient
Results
Being direct with your opinions and ideas
Constantly pushing yourself toward new goals
Setting high expectations for yourself and others
Section 4: Everything DiSC Workplace
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 41
The category scores were then submitted to a multidimensional scaling analysis. This analysis allows
researchers to look at the relationship among the eight categories and determine if the categories relate
to each other in the manner predicted by the model. The results of the analysis are presented in Figure
12. Categories that are closer together share more in common and categories that are farther apart are
more dissimilar.
Figure 12. Multidimensional Scaling Results
As expected, the eight priorities are arranged in a circular shape, with the priorities arranged in the
manner predicted by the Everything DiSC Workplace
®
model. That is, the sequence around the circle
proceeds: Action, Enthusiasm, Collaboration, Support, Stability, Accuracy, Challenge, and Results.
Although the eight priority scales do not form a perfectly equidistant circle, this theoretical ideal is nearly
impossible to obtain with actual data.
Section 4: Everything DiSC Workplace
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 42
Summary of the Validation Results
Overall, this study provides strong support for the Everything DiSC Workplace
®
model. Data from a large
sample of working adults suggest that the eight priorities are arranged in a circular fashion in the
predicted order. This type of empirical support should give DiSC
®
participants confidence that the
Everything DiSC Workplace model accurately reflects real-life workplace environments and is useful for
understanding various approaches to work.
Section 5: Everything DiSC
®
Productive Conflict Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 43
Section 5: Everything DiSC
®
Productive Conflict Research
Background
The application-specific model used in the Everything DiSC
®
Productive Conflict Profile, shown in Figure
13, helps learners understand how they approach conflict situations. The eight words around the map
indicate the top priorities of learners with different DiSC
®
styles. For example, the priorities of “S”
individuals are Harmony, Stability, and Reassurance. The development of this model was based on
empirical data.
Figure 13. Everything DiSC Productive Conflict Model
The Research
A total of 8,332 participants were asked to take the Everything DiSC Productive Conflict assessment in
preparation for an upcoming classroom training session. This assessment measured the eight DiSC
scales as well as eight Productive Conflict priority scales. These scales are shown in Table 23, along with
sample items included within each scale. Items were rated on a five-point Likert scale ranging from
Strongly Disagree to Strongly Agree. The Productive Conflict priority scales are standardized to have a
mean of zero and standard deviation of one.
Section 5: Everything DiSC
®
Productive Conflict Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 44
Table 23. Sample Items for the Productive Conflict Priority Scales
Scale
Sample Items
Assertion
When I'm in a conflict, I confront the topic without waiting
When I'm in a conflict, I tackle the issue head on
Expression
When I'm in a conflict, I tend to verbalize my emotions
When I'm in a conflict, I have a strong need to express my feelings
Reassurance
When I'm in a conflict, I'm still very empathetic with the other person
When I'm in a conflict, I'm eager to forgive the other person (even if I probably
shouldn't)
Harmony
When I'm in a conflict, the lack of harmony in the relationship really bothers me
When I'm in a conflict, I do whatever it takes to calm the situation down
Stability
When I'm in a conflict, the lack of stability in my world is very unnerving for me
When I'm in a conflict, I sometimes cave in just to make things stable again
Objectivity
When I'm in a conflict, I'm very disciplined at stepping outside myself and
analyzing the situation objectively
When I'm in a conflict, I sometimes cave in just to make things stable again
Justification
When I'm in a conflict, I'm great at quickly coming up with an airtight
justification for my position
When I'm in a conflict, I'm very good at logically dissecting and dismantling the
other person's argument
Control
When I'm in a conflict, I make sure I'm in control
When I'm in a conflict, I often take charge of the conversation
The priority scales were first submitted to a multidimensional scaling analysis, which allows researchers
to look at the relationship among the eight scales and compare this against the expected relationships,
as predicted by the model. The results of this analysis are presented in Figure 14. Scales that are closer
together share more in common and scales that are farther apart are more dissimilar.
Section 5: Everything DiSC
®
Productive Conflict Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 45
Figure 14. Multidimensional Scaling Results for Productive Conflict Priority Scales
The results suggest that the scales are related in a manner consistent with the conceptual model. That is,
the priority scales are arranged in a roughly equally spaced circle in the predicted order. For instance,
Harmony is equally distant from both Reassurance and Stability, and is between the two of them. Table
24 shows the intercorrelations among the priority scales.
Section 5: Everything DiSC
®
Productive Conflict Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 46
Table 24. Intercorrelations Among Productive Conflict Priority Scales
Priority Scales
Control
Assertion
Expression
Reassurance
Harmony
Stability
Objectivity
Justification
Control
-
.67
-.23
-.34
-.72
-.59
-.19
.47
Assertion
.67
-
.55
.02
-.50
-.81
-.43
.10
Expression
.23
.55
-
.49
-.07
-.58
-.70
-.23
Reassurance
-.34
.02
.49
-
.53
-.13
-.50
-.63
Harmony
-.72
-.50
.53
.53
-
.38
-.06
-.58
Stability
-.59
-.81
-.13
-.13
.38
-
.42
-.11
Objectivity
-.19
-.43
-.50
-.50
-.06
.42
-
.22
Justification
.47
.10
-.63
-.63
-.58
-.11
.22
-
The intercorrelation matrix further suggests that the relationship among the priority scales are as
predicted by the theoretical model. That is, each scale has its strongest positive correlation with the two
scales adjacent to it. The degree of correlation among adjacent scales, however, does vary more than
expected. As well, all scales demonstrate their strongest negative correlation with scales that are
theoretically opposite, as shown in the grey shaded boxes.
Finally, Figure 15 shows the relationship among the priority scales and the DiSC
®
scales. The results
suggest that each priority scale tends to be most strongly correlated with the DiSC scale specified in the
theoretical model. For instance, the Control scale is most strongly correlated with the D scale.
Section 5: Everything DiSC
®
Productive Conflict Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 47
Figure 15. Multidimensional Scaling Results for Productive Conflict Priority Scales and DiSC
®
Scales
Summary of the Validation Results
Overall, these results provide support for the Everything DiSC
®
Productive Conflict model. The priority
scales are correlated in a manner predicted under the theoretical model and are correlated with the
DiSC
®
scales as expected. This type of empirical support should give managers confidence that the
Productive Conflict model accurately reflects real-life conflict approaches and is useful for understanding
various approaches to conflict.
Section 6: Everything DiSC Work of Leaders
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 48
Section 6: Everything DiSC Work of Leaders
®
Research
Background
The Everything DiSC Work of Leaders
®
assessment includes 75 items in addition to the basic Everything
DiSC
®
assessment. These items are necessary to measure the 18 additional scales included on the
Everything DiSC Work of Leaders Profile.
Each of these items is comprised of two statements placed at opposite ends of a four-point continuum.
The rater is asked to choose the point on the continuum that best describes him or her. For instance,
one continuum has the statement “I am an optimist” on one end and the statement “I am a realist” on the
other. Each scale is standardized to have a mean of 0 and standard deviation of 1.
The Validation Process
The analyses presented below are based on a sample of 349 participants. The sample is 52% female
and 48% male. Within the sample, 90% of participants are between the ages of 25 and 60. The majority
of participants (52%) have at least some college. Ethnic backgrounds are as follows: African American
(6%), Asian American (5%), Caucasian (79%), Hispanic (6%), Native American (1%), and other (3%).
Internal Reliability
The median internal reliability alpha coefficient for these 18 scales was .81, as shown in Table 25. The
alphas range from .69 to .89. These results indicate that the Work of Leaders scales demonstrate good
to excellent internal reliability. These findings also suggest that each of these scales measures a single,
unified construct.
Intercorrelations Among the Work of Leaders Scales
Intercorrelations among the 18 Work of Leaders scales are shown in Tables 26 and 27. Coefficients
range from -.90 to .80, with a median of .04. Many of the stronger correlations are the result of
overlapping items among the scales. For instance, the Praise scale, which measures a tendency to give
praise to others at work, has many items in common with the Receptive scale, which measures a
tendency to come across as warm and welcoming.
Section 6: Everything DiSC Work of Leaders
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 49
Overall, correlations are as expected and do not present many surprises. For instance, we would expect
a high positive correlation between the Adventurous scale and the Speaking Out scale, whereas we
would expect a high negative correlation between the Adventurous scale and the Planning scale.
Table 25. Internal Reliability Coefficients for Work of Leaders Scales
WOL Scale
Alpha
Number of Items
Remaining Open
.71
8
Prioritizing the Big Picture
.69
8
Being Adventurous
.75
7
Speaking Out
.85
13
Seeking Counsel
.74
4
Exploring Implications
.86
9
Explaining Rationale
.72
5
Structuring Messages
.80
5
Exchanging Perspectives
.72
14
Being Receptive
.89
30
Being Expressive
.88
14
Being Encouraging
.86
12
Being Driven
.86
19
Initiating Action
.87
13
Providing a Plan
.74
9
Analyzing In-Depth
.75
9
Addressing Problems
.85
22
Offering Praise
.82
11
Median
.81
10
Section 6: Everything DiSC Work of Leaders
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 50
Table 26. Intercorrelations Among Work of Leaders Scales
Prioritizing Big Picture
Remaining Open
Being Adventurous
Speaking Out
Seeking Counsel
Exploring Implications
Explaining Rationale
Structuring Messages
Exchanging Perspectives
Prioritizing Big Picture
.73
.27
.31
.04
-.42
-.33
-.35
-.05
Remaining Open
.73
.32
.33
.14
-.43
-.37
-.47
.03
Being Adventurous
.27
.32
.66
.02
-.23
.02
-.19
-.29
Speaking Out
.31
.33
.66
.06
-.21
-.03
-.25
-.38
Seeking Counsel
.04
.14
.02
.06
-.02
-.10
-.07
.70
Exploring Implications
-.42
-.43
-.23
-.21
-.02
.53
.54
.06
Explaining Rationale
-.33
-.37
.02
-.03
-.10
.53
.40
-.19
Structuring Messages
-.35
-.47
-.19
-.25
-.07
.54
.40
.05
Exchanging
Perspectives
-.05
-.03
-.29
-.38
.70
.06
-.19
.05
Being Receptive
-.14
-.09
-.25
-.34
.35
.06
-.21
.08
.71
Being Expressive
.18
.23
.52
.80
.23
-.15
-.13
-.20
-.14
Being Encouraging
.12
.18
.10
.19
.44
-.04
-.27
-.04
.49
Being Driven
.17
.17
.62
.72
-.10
-.17
.08
-.11
-.56
Initiating Action
.31
.37
.72
.76
.11
-.15
.02
-.19
-.23
Providing a Plan
-.71
-.90
-.32
-.29
-.13
.64
.42
.57
-.01
Analyzing In-Depth
-.01
-.11
.07
.15
-.15
.56
.59
.43
-.23
Addressing Problems
.17
.16
.40
.56
-.20
-.07
.23
-.13
-.64
Offering Praise
-.03
.04
.01
.03
.43
.04
-.17
.04
.59
Section 6: Everything DiSC Work of Leaders
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
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Table 27. Intercorrelations Among Work of Leaders Scales (continued)
Being Receptive
Being Expressive
Being Encouraging
Being Driven
Initiating Action
Providing a Plan
Analyzing In-Depth
Addressing Problems
Offering Praise
Prioritizing Big Picture
-.14
.18
.12
.17
.31
-.71
-.01
.17
-.30
Remaining Open
-.09
.23
.18
.17
.37
-.90
-.11
.16
.04
Being Adventurous
-.25
.52
.10
.62
.72
-.32
.07
.40
.01
Speaking Out
-.34
.80
.19
.72
.76
-.29
.15
.56
.03
Seeking Counsel
.35
.23
.44
-.10
.11
-.13
-.15
-.20
.43
Exploring Implications
.06
-.15
-.04
-.17
-.15
.64
.56
-.07
.04
Explaining Rationale
-.21
-.13
-.27
.08
.02
.42
.59
.23
-.17
Structuring Messages
.06
-.20
-.04
-.11
-.19
.57
.43
-.13
-.04
Exchanging Perspectives
.71
-.14
.49
-.56
-.23
-.01
-.23
-.64
.59
Being Receptive
-.09
.65
-.63
-.20
.10
-.24
-.86
.71
Being Expressive
-.09
.40
.56
.65
-.17
.04
.34
.29
Being Encouraging
.65
.40
-.15
.23
-.12
-.14
-.39
.80
Being Driven
-.63
.56
-.15
.64
-.16
.19
.71
-.28
Initiating Action
-.20
.65
.23
.64
-.31
.18
.39
.12
Providing a Plan
.10
-.17
-.12
-.16
-.31
.30
-.14
.01
Analyzing In-Depth
-.24
.04
-.14
.19
.18
.30
.26
-.13
Addressing Problems
-.86
.34
-.39
.71
.39
-.14
.26
-.50
Offering Praise
.71
.29
.80
-.28
.12
.01
-.13
-.50
Section 6: Everything DiSC Work of Leaders
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 52
Correlations Among Work of Leaders Scales and DiSC
®
Scales
Correlations among the Everything DiSC Work of Leaders
®
scales and the DiSC
®
scales are shown in
Table 28. These correlations are largely as expected. The largest positive correlation for each of the DiSC
scales is as follows: Di-Adventurous, i-Expressive, iS-Encouraging, S-Receptive, SC-Exchanging
Perspectives, C-Providing a Plan, CD-Addressing Problems, D-Addressing Problems. Most Work of
Leaders scales show a significant correlation with several of the DiSC scales. Further, the pattern of
these correlations is consistent with the DiSC circumplex model. That is, if a given Work of Leaders scale
has a high positive correlation with a particular DiSC scale, then the Work of Leaders scale has a high
negative correlation with the DiSC scale on the opposite side of the DiSC circumplex. The correlations
range from -.85 to .87, with a median of .81.
Section 6: Everything DiSC Work of Leaders
®
Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 53
Table 28. Correlations Among Work of Leaders Scales and DiSC
®
Scales
Work of Leaders Scales
DiSC Scales
Di
i
iS
S
SC
C
CD
D
Remaining Open
.22
.11
.02
-.14
-.16
-.24
.08
.15
Prioritizing Big Picture
.23
19
.09
-.12
-.22
-.34
.08
.17
Being Adventurous
.83
.44
.04
-.27
-.73
-.44
-.03
.46
Speaking Out
.71
.51
.05
-.46
-.85
-.44
.16
.70
Seeking Counsel
.09
.38
.43
.22
-.10
-.46
-.32
-.12
Exploring Implications
-.13
-.14
-.07
.12
.14
.24
-.10
-.15
Explaining Rationale
.05
-.17
-.28
-.11
-.02
.26
.09
.08
Structuring Messages
-.11
-.17
-.05
.13
.16
.23
-.10
-.17
Exchanging Perspectives
-.26
.18
.57
.67
.31
-.28
-.54
-.65
Being Receptive
-.21
.25
.75
.78
.23
-.27
-.74
-.65
Being Expressive
.61
.74
.28
-.29
-.79
-.59
-.02
.52
Being Encouraging
.14
.53
.87
.39
-.25
-.52
-.60
-.23
Being Driven
.64
.27
-.29
-.72
-.71
-.16
.44
.74
Initiating Action
.83
.50
.09
-.29
-.75
-.44
-.04
.47
Providing a Plan
-.20
-.18
-.07
.14
.17
.34
-.10
-.16
Analyzing In-Depth
.13
-.14
-.23
-.17
-.12
.23
.11
.12
Addressing Problems
.36
.01
-.53
-.76
-.46
.01
.61
75
Offering Praise
.04
.47
.79
.54
-.11
-.43
-.68
-.33
.
Section 7: Everything DiSC
®
Comparison Report Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 54
Section 7: Everything DiSC
®
Comparison Report Research
Background
The Everything DiSC
®
Comparison Report allows any two Everything DiSC participants to see their
similarities and differences in six areas. The report includes a narrative that explains these similarities and
differences and guides participants in a discussion around them. Overall, the purpose of this report is to
improve communication and efficiency, while reducing tension and misunderstandings.
The Everything DiSC Comparison Report begins with a brief comparison of the two participants DiSC
®
styles. Each participant’s style is calculated from the participants responses to the Everything DiSC
assessment (discussed in Section 1 of this report). The focus of this section of the research report is on
the continua contained in the second section of the Everything DiSC Comparison Report. Figure 16
shows an example of one such continuum.
Figure 16. Continuum Example
Selection of the Continua within Each Report
For each report, nine continua are calculated. The names of these continua are shown in Table 29.
However, only the six continua that are expected to generate the most meaningful discussion for the
participants are presented in the Comparison Report. This ensures that participants are not overwhelmed
by the information and are better able to focus their discussions on meaningful topics.
Section 7: Everything DiSC
®
Comparison Report Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 55
Table 29. Everything DiSC
®
Comparison Report Continua
Soft-spokenForceful
DaringCareful
PatientDriven
SkepticalAccepting
OutgoingPrivate
TactfulFrank
AccommodatingStrong-willed
LivelyReserved
CalmEnergetic
A panel of DiSC
®
subject-matter experts reviewed each possible pairing on all nine continua and
developed an algorithm to determine which six continua would be presented within a given Everything
DiSC
®
Comparison Report. The decision rules used in creating this algorithm include:
If possible, at least two continua showing similarities should be presented.
If possible, at least two continua showing differences should be presented.
Continua on which there are larger differences are more likely to be presented than continua on
which there are smaller differences.
Among continua that have very high statistical correlations or conceptual overlap, only the continuum
judged to be most meaningful should be presented.
Although other decision rules were used to create this algorithm, those presented above represent the
major criteria. Within the report, the largest differences are presented first and the smallest differences (or
greatest similarities) are shown last.
Scoring of the Continua
Each of the nine continua are calculated using the same item responses that are used to calculate a
participant’s DiSC style. Although there is substantial overlap in the items used to calculate DiSC style
and continua scores, an individual’s continua scores are calculated separately from his or her DiSC style.
Section 7: Everything DiSC
®
Comparison Report Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 56
Therefore, it is possible to have a person who tends toward the S style, for example, who is more Daring
than Careful on that particular continuum, even though this is quite atypical for people with the S style.
The number of items on each continuum scale range from four to eleven, with a median of eight.
Internal Reliability
Alpha internal reliability coefficients were calculated for each of the nine continua, as shown in Table 30,
using a sample of 752 participants. These coefficients range from .74 to .88, with a median reliability of
.78. Therefore, these scales demonstrate adequate to excellent internal consistency. This finding
suggests that each of these continua scales is measuring a single, unified construct.
Table 30. Alpha Coefficients of the Continua Scales
Scale
Number of Items
Alpha
Soft-spokenForceful
13
.85
DaringCareful
7
.75
PatientDriven
10
.74
SkepticalAccepting
12
.82
OutgoingPrivate
8
.88
TactfulFrank
8
.75
AccommodatingStrong-willed
11
.75
LivelyReserved
12
.85
CalmEnergetic
11
.78
Intercorrelations Among the Continua Scales
Intercorrelations among the continua scales were calculated using a sample of 752 participants. As
shown in Table 31, many of the scale correlations are quite high, likely because these scales contain
overlapping items. Although these scales may appear repetitive, they are included because each is used
to help facilitate a different discussion between participants. For instance, the Calm-Energetic scale
correlates at -.83 with the Outgoing-Private scale. The Calm-Energetic scale, however, is used to
facilitate a discussion about the pace at which participants choose to complete tasks. On the other hand,
Section 7: Everything DiSC
®
Comparison Report Research
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
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®
assessments. 57
the Outgoing-Private scale is used to facilitate a discussion about such topics such as the need for
personal space versus the need for interaction.
Table 31. Continua Scale Intercorrelations
Soft-spoken
Forceful
Daring
Careful
Patient
Driven
Skeptical
Accepting
Outgoing
Private
Tactful
Frank
Accommodating
Strong-willed
Lively
Reserved
Calm
Energetic
Soft-spokenForceful
-.59
.62
-.21
-.62
.66
.50
-.75
.64
DaringCareful
-.59
-.74
.01
.50
-.33
-.24
.59
-.69
PatientDriven
.62
-.74
-.07
-.48
.35
.26
-.63
.82
SkepticalAccepting
-.21
.01
-.07
-.31
-.58
-.66
-.15
.06
OutgoingPrivate
-.62
.50
-.48
-.31
-.13
.01
.89
-.63
TactfulFrank
.66
-.33
.35
-.58
-.13
.78
-.29
.31
Accommodating
Strong-willed
.50
-.24
.26
-.66
.01
.78
-.14
.19
LivelyReserved
-.75
.59
-.63
-.15
.89
-.29
-.14
-.83
Calm--Energetic
.64
-.69
.82
.06
-.63
.31
.19
-.83
Summary of the Validation Results
Overall, this research provides strong support for the Everything DiSC
®
Comparison Report continua
scales. Data from a large sample of working adults suggest these scales have good internal reliability and
accurately reflect participants’ self-perceptions. This type of empirical support should give DiSC
®
participants confidence that the Everything DiSC Comparison Report provides a solid foundation for
participants to discuss their similarities and differences as a basis for relationships that are more
productive and enjoyable.
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 58
Section 8: Appendices
Appendix 1. Everything DiSC
®
Assessment Development Sample Demographics
Everything DiSC
®
Assessment Development Sample Demographics
Gender
Male
52
%
Female
48
%
Age
18-25
9
%
26-35
24
%
36-45
21
%
46-55
30
%
56 or older
16
%
Education
Some high school
1
%
High school graduate
16
%
Technical/Trade school
9
%
Some college
28
%
College graduate
32
%
Graduate/Professional degree
14
%
Heritage
African American
5
%
Native American
1
%
Asian American
5
%
Caucasian
80
%
Hispanic
6
%
Other
3
%
Employment
Secretary/Clerical
7
%
Executive
3
%
Mid-Level Management
6
%
Supervisory
2
%
Professional
10
%
Mechanical-Technical
2
%
Customer Service
3
%
Sales
4
%
Healthcare Worker
3
%
Teacher/Educator
6
%
Skilled Trades
4
%
Student
2
%
Other
48
%
N=752
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 59
Appendix 2. Percent of Variance Accounted for by Gender
Percent of Variance Accounted for by
Gender
Scale
Percent
5.1
2.3
0.1
5.2
6.2
0.2
2.4
4.2
It is important to understand the relationship between gender and profile score. An analysis of variance
(ANOVA) was performed on the eight scale means across gender groups to determine any differences.
These differences are generally small. The largest differences are seen on the S scale, in which gender
accounted for 6.2% of scale variance. Women tended to score higher on the i, iS, S, and SC scales, and
men tended to score higher on the D, Di, C, and DC scales. Although statistically significant differences
were found on five of the eight scales, in practical terms these differences are not large.
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 60
Appendix 3. Correlation Between the Everything DiSC
®
Assessment and the 16PF
Correlation Between the Everything DiSC
®
Assessment and the 16PF
®
16PF
®
Scale
DiSC
®
Scales
Di
i
iS
S
SC
C
CD
D
Warmth
.15
.45
49
.25
-.30
-.51
-.31
-.01
Reasoning
-.16
-.24
-.18
-.11
.08
.23
.23
.01
Emotional Stability
.21
.31
.38
.17
-.22
-.31
-.33
-.01
Dominance
.54
.28
-.14
-.45
-.63
-.24
.19
.63
Liveliness
.42
.62
.37
.06
-.45
-.55
-.27
.09
Rule Consciousness
-.21
-.03
.18
.23
.11
.07
-.23
-.20
Social Boldness
.52
.70
.35
-.10
-.66
-.60
-.19
.33
Sensitivity
-.17
.01
.15
.18
.10
-.05
-.05
.23
Vigilance
.07
-.15
-.33
-.27
-.04
.10
.31
.23
Abstractedness
.09
-.07
-.21
-.23
-.02
.01
.24
.15
Privateness
-.21
-.39
-.31
-.04
.31
.33
.17
-.10
Apprehension
-.29
-.26
-.11
.06
.22
.22
.18
-.21
Openness to Change
.36
.19
.00
-.16
-.38
-.23
.08
.24
Self-reliance
-.25
-.47
-.39
-.17
.28
.51
.30
.01
Perfectionism
.10
.05
.00
.00
-.11
.15
-.12
-.01
Tension
-.05
-.18
-.43
-.45
-.03
.24
.55
.20
Extraversion
.41
.70
.51
.12
-.52
-.67
-.34
.12
Anxiety
-.18
-.31
-.41
-.26
.15
.30
.45
.06
Tough Mindedness
-.16
-.18
-.12
.02
.23
.26
-.04
-.08
Independence
.60
.42
-.04
-.40
-.71
-.38
.14
.60
Self-control
-.18
-.12
.07
.18
.11
23
-.18
-.17
Realistic
.22
-.05
-.19
-.19
-.08
.09
.03
.20
Investigative
.06
-.23
-.31
-.22
.05
.26
.17
.13
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 61
(continued)
16PF
®
Scale
DiSC
®
Scales
Di
i
iS
S
SC
C
CD
D
Artistic
.36
.40
.16
-.11
-.45
-.41
.00
.23
Social
.30
.56
.45
.12
-.49
-.57
-.26
.14
Enterprising
.53
.53
.21
-.17
-.65
-.50
-.10
.44
Conventional
.06
.06
.07
.06
-.08
.08
-.18
-.02
Self-esteem
.39
.52
.40
.07
-.46
-.48
-.32
.17
Emotional Adjustment
.24
.32
.33
.15
-.21
-.30
-.36
.04
Emotional Expressivity
.51
.68
.38
-.06
-.64
-.60
-.24
.32
Emotional Sensitivity
.27
.45
.42
.14
-.42
-.52
-.23
.10
Social Control
.01
-.16
-.18
-.10
.07
.13
.07
.09
Social Expressivity
.55
.74
.41
-.04
-.67
-.66
-.24
.27
Social Sensitivity
-.37
-.26
-.09
.10
.30
.21
.15
-.22
Social Control
.53
.62
.30
-.13
-.67
-.52
-.16
.35
Empathy
.37
.60
.56
.22
-.44
-.57
-.44
.05
Leadership Potential
.47
.60
.40
.04
-.55
-.49
-.33
.20
Creative Potential
.62
.51
.07
-.32
-.72
-.41
.02
.51
Creative Achievement
.37
.19
-.09
-.27
-.35
-.11
.12
.26
N=552
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 62
Appendix 4. Correlation Between the Everything DiSC
®
Assessment and the
NEO-PI-R
Correlation Between the Everything DiSC
®
Assessment and the NEO-PI-R
NEO-PI-R
Scale
DiSC
®
Scales
Di
I
iS
S
SC
C
CD
D
Neuroticism
-.31
-.29
-.26
-.12
.26
.31
.28
-.10
Extraversion
.45
.69
.52
.10
-.57
-.63
-.34
.15
Openness to Experience
.27
.10
.06
-.05
-.27
-.10
-.03
.10
Agreeableness
-40
-.01
.52
.67
.35
-.05
-.48
-.58
Conscientiousness
.26
.09
.00
-.07
-.27
.11
-.11
.10
Anxiety
-.29
-.22
-.18
-.06
.23
.23
.23
-.10
Angry Hostility
.01
-.13
-.46
-.53
-.04
.17
.51
.30
Depression
-.30
-.34
-.30
-.08
.32
.30
.27
-.10
Self-consciousness
-.40
-.48
-.27
.00
.44
.41
.23
-.23
Impulsiveness
-.08
-.08
-.21
-.27
-.01
.05
.35
.14
Vulnerability
-.35
-.21
-.19
-.04
.34
.18
.21
-.14
Warmth
.25
.60
.61
.29
-.41
-.55
-.43
-.03
Gregariousness
.40
.65
.41
.16
-.42
-.59
-.36
.06
Assertiveness
.68
.49
.11
-.30
-.75
-.41
-.04
.55
Activity
.57
.47
.12
-.23
-.57
-.33
-.11
.32
Excitement Seeking
.51
.37
.11
-.09
-.42
-.32
-.13
.19
Positive Emotions
.25
.50
.57
.21
-.35
-.44
-.41
-.06
Fantasy
.15
.05
.04
-.04
-.15
-.11
.05
.06
Aesthetics
.20
.16
.14
.06
-.17
-.15
-.15
-.02
Feelings
.14
.23
.22
.02
-.29
-.20
-.07
.09
Actions
.43
.34
.16
.01
-.34
-.34
-.16
.09
Ideas
.33
.10
-.01
-.15
-.35
-.04
-.01
.23
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 63
(continued)
NEO-PI-R
Scale
DiSC
®
Scales
Di
I
iS
S
SC
C
CD
D
Values
.08
.01
.02
.00
-.14
-.04
.06
.02
Trust
.03
.26
.55
.39
-.08
-.27
-.47
-.21
Straightforwardness
-.28
-.03
.27
.39
.24
.05
-.27
-.35
Altruism
.02
.28
.53
.47
-.13
-.27
-.42
-.27
Compliance
-.27
-.01
.47
.65
.41
.00
-.55
-.63
Modesty
-.39
-.21
.09
.31
.37
.16
-.08
-.35
Tender Mindedness
.00
.16
.37
.27
-.12
-.18
-.28
-.12
Competence
.33
.19
.16
.05
-.35
-.07
-.21
.08
Order
.18
.12
.07
.06
-.16
.07
-.17
-.04
Dutifulness
.11
.11
.19
.16
-.17
.00
-.22
-.06
Achievement Striving
.48
.31
.11
-.11
-.44
-.15
-.19
.20
Self-discipline
.30
.23
.118
.05
-.29
-.11
-.26
.08
Deliberation
-.12
-.11
.09
.26
.15
.18
-.22
-.26
Section 8: Appendices
Copyright ©2013 by John Wiley & Sons, Inc. All rights reserved.
Permission to reproduce only when used in conjunction with Everything DiSC
®
assessments. 64
Appendix 5. References
IPAT (2009). 16PF fifth edition questionnaire manual. Champaign, IL: Institute for Personality and Ability
Testing.
Kiesler, D.J., Schmidt, J.A., & Wagner, C.C. (1997). A circumplex inventory of impact messages: An
operational bridge between emotion and interpersonal behavior. In R. Plutchik & H. Conte (Eds.),
Circumplex models of personality and emotions. Washington, DC: American Psychological Association.
McCrae, R.R., & Costa, P.T., Jr. (2010). NEO inventories: Professional manual. Odessa, FL:
Psychological Assessment Resources.
Wiggins, J.S. (1995). Interpersonal adjective scales: Professional manual. Odessa, FL: Psychological
Assessment Resources.
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