Research, Reliability & Validity

The publisher of DiSC® assessments, J Wiley, is committed to maintaining the highest standards of instrument development and application through careful research and development processes. All DiSC® instruments offer valid scores and accurate feedback to the respondent. Each instrument is designed to provide reasonably accurate interpretations or feedback based on individual scores.


Research and rigorous validation studies by Wiley have made DiSC® psychometric assessments products you can confidently use in training, coaching or consulting situations. Research reports are publicly available here.

All reports are provided as PDF files.


Everything DiSC® Application Library Research Report

Research on the Everything DiSC® Application profiles for Management, Sales, Workplace, and the Everything DiSC® Comparison Report.

Section 1 includes background and research on the assessment, specifically on the Adaptive Testing response set, The DiSC® scales that are derived from this information, and the circumplex representation of the model. Sections 2-4 provide research on the application-specific models used in Everything DiSC Management®, Everything DiSC Sales®, and Everything DiSC Workplace®. Section 5 provides the research for the Everything DiSC® Comparison Report.

How My Graph Became a Dot

How the newer Everything DiSC® circle and dot representation was developed to make the model simpler, more intuitive, and more relevant than the classic graph model.

Everything DiSC 363® for Leaders Research Report and

How Everything DiSC 363® for Leaders Fits into Contemporary Leadership Theory: White Paper

The research behind the first DiSC 360®. Includes both extensive validation research and a white paper on how the model fits in with other popular leadership theories.