Rethinking the Role of Assessments in the Discovery of Type

A self-scoring questionnaire that works through nine blocks of statements, one per type. Rate how well each statement describes you, add up the columns, and the totals point to your dominant pattern.

Robert Tallon and Mario Sikora

The full psychometric documentation behind a widely used Enneagram test. Covers test design, reliability, content and factorial validity, and the demographic patterns found across respondents, with the correlation tables included in full.

Truity Psychometrics

Answers the question every newcomer asks: is there any evidence behind this? Summarizes the published research on the Enneagram, what it has established so far, and where the gaps still are.

Anna Sutton