This test uses the Open Enneagram of Personality Scales (OEPS) — a 36-item, public-domain Enneagram inventory developed by Eric Jorgenson and hosted on the Open-Source Psychometrics Project (openpsychometrics.org).
What is the Enneagram?
The Enneagram is a model of personality with nine types, organized by the geometry of the Enneagram figure. The model was popularized in self-help, business management, and spiritual development contexts from the 1980s onwards. It is not a model used in academic psychological research, but it is one of the most widely known typology systems in popular culture.
How OEPS was developed
The OEPS items were generated from descriptions of the nine types in various published Enneagram sources. From a 60-item alpha version, the best 4 items per type were selected empirically against a sample of 7,898 self-identified Enneagram enthusiasts who said they knew their type and had spent at least several hours learning the model. The items you see on this page are the ones that produced the largest deviation on their target type relative to the other eight types.
Test structure
36 statements, 4 per Enneagram type. Rate each on a 5-point scale from "Strongly Disagree" to "Strongly Agree". Takes about 5–8 minutes. Your top-scoring type is your most likely Enneagram type; the runner-up and third place are also shown.
Source and validity
- Author: Eric Jorgenson (Open-Source Psychometrics Project)
- First published: 2019; updated 2026
- Validation sample: 7,898 self-identified Enneagram enthusiasts
- License: Public domain (free to use, edit, translate)
- Documentation: openpsychometrics.org/tests/OEPS/development/
How to use your result
Your top-scoring type is the most likely match. The second and third highest scores give you a more nuanced picture — most people are a blend of their top two types. Treat this as a starting point for self-reflection, not as a clinical or scientific diagnosis. Not suitable for hiring, clinical diagnosis, or other high-stakes decisions.