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Everything DiSC Manual

Mark Scullard, Dabney Baum

ISBN: 978-1-119-08067-1 April 2015 247 Pages


HR and talent management professionals look to Everything DiSC to develop individuals in the areas of leadership, management training, sales training, and team building. The Everything DiSC Manual is the professional's comprehensive guide to the research that supports the Everything DiSC suite of assessments.

With this complete reference tool, professionals can access the research and theory behind Everything DiSC. In addition to providing an in-depth overview of the DiSC model and the various applications associated with DiSC, the Everything DiSC Manual provides coverage on the following key topics:

  • Research supporting the validity and reliability of the DiSC styles
  • An overview of DiSC as it intersects with current psychological theory
  • Case studies modeling the proper interpretation of the tool
  • DiSC as it applies to gender, ethnicity, and education

This manual is an essential reference tool for anyone facilitating Everything DiSC products.

List of Tables

List of Figures


Chapter 1 DiSC Overview and Theory

The Purpose of Everything DiSC

The DiSC Model

The Two Dimensions Behind DiSC

The DiSC Quadrants

The Twelve Everything DiSC Styles

Connection to Other Models and Psychometric Theory

Interpersonal Circumplex

The California Psychological Inventory

The Five-Factor Model of Personality

The Myers-Briggs Type Indicator

Chapter 2 Methodology of Development

Previous Assessments Measuring the DiSC Model

Everything DiSC Technical Development

Rationale of Scale Construction

Generation of the Initial Item Pool

Pilot Test

Item Evaluation

Final Selection

Standardization and Norming

Item Translation

Chapter 3 Administration and Scoring of the Assessment

Appropriate Populations

Accessing the Everything DiSC Assessment

Responding to the Assessment

The Scales Within Everything DiSC

The DiSC Scales

The Priority Scales

Adaptive Testing Procedures


Chapter 4 The DiSC Scales and Styles: Reliability and Validity

Reliability of the DiSC Scales and Styles

Internal Reliability of the Scales

Test-Retest Reliability of the Scales

Test-Retest Reliability of the Styles

Evidence for the Validity of the DiSC Scales

Construct Validity of the Scales

Criterion Validity of the Scales

Evidence for the Validity of the DiSC Styles

Construct Validity of the Styles

Criterion Validity of the Styles

Chapter 5 Demographic Considerations

Internal Reliability by Gender, Heritage, and Education

Correlation Matrices by Gender, Heritage, and Education

Correlation Matrices by Gender

Correlation Matrices by Education

Correlation Matrices by Heritage

Variance Accounted for by Gender, Heritage, and Education

Variance Accounted for by Gender

Variance Accounted for by Heritage

Variance Accounted for by Education

Distribution of Style by Gender, Heritage, and Education

Distribution of Inclination by Gender and Heritage

Chapter 6 The Everything DiSC Applications

Everything DiSC Workplace

Development of the Workplace Priorities

Validation of the Workplace Priorities

Everything DiSC Sales

Development of the Sales Priorities

Validation of the Sales Priorities

Everything DiSC Management

Development of the Management Priorities

Validation of the Management Priorities

Everything DiSC Work of Leaders

Validation of the Work of Leaders Scales

Work of Leaders Priorities

Everything DiSC 363 for Leaders

Development of the Practice Scales for 363 for Leaders

Comparing Self and Other Ratings

Differences Based on Demographic Categories

Chapter 7 The Everything DiSC Comparison Report

Selection of the Continua Within Each Report

Scoring of the Comparison Report Scales

Reliability of the Comparison Report Scales

Internal Reliability

Test-Retest Reliability

Validity of the Comparison Report Scales

Intercorrelations Among the Continua Scales

Correlations with the Other Measures of Personality

Chapter 8 Interpretation of Results

Interpretation of Style

Interpretation of Inclination

Interpretation of Shading

Case Studies

Andrea: D Style

Rafael: CS Style

Amira: i Style

James: S Style


Appendix A: DiSC History

Appendix B: Everything DiSC Sample Demographics

Appendix C: Correlations Among the Everything DiSC Assessment and Other Assessments

Appendix D: Style Distribution

Appendix E: Leadership Correlations

Appendix F: ANOVA Results

Appendix G: Correlations Among the Work of Leaders and Other Assessments