The Eysenck Personality Profiler (EPP) measures 21 primary personality traits that sit under Hans Eysenck’s three broad factors: Extraversion, Neuroticism and Psychoticism. Each factor has seven traits, and a lie scale is included.
Hans Eysenck and Glenn Wilson developed the EPP. I joined them as a co-author of the 1992 paper that reported the measurement of the 21 traits, and of the short form (EPP-S), which keeps nine of the scales for settings where the full version is too long.
With Adrian Furnham and colleagues I examined the structure of the EPP in the British Journal of Psychology (2000). The nine-scale short form fitted a three-factor model better than the full version did. Later papers with K. V. Petrides and Leslie Francis developed a revised short form and compared versions with 6, 12 and 20 items per scale. The EPP is used in research and in selection and appraisal.
Key references
- Eysenck, H. J., Barrett, P., Wilson, G., & Jackson, C. J. (1992). Primary trait measurement of the 21 components of the P-E-N system. European Journal of Psychological Assessment, 8(2).
- Jackson, C. J., Furnham, A., Forde, L., & Cotter, T. (2000). The structure of the Eysenck Personality Profiler. British Journal of Psychology, 91, 223–239. doi:10.1348/000712600161808
- Petrides, K. V., Jackson, C. J., Furnham, A., & Levine, S. Z. (2003). Exploring issues of personality measurement and structure through the development of a short form of the Eysenck Personality Profiler. Journal of Personality Assessment, 81, 271–280. doi:10.1207/S15327752JPA8103_10
- Francis, L. J., & Jackson, C. J. (2004). Which version of the Eysenck Personality Profiler is best? 6-, 12- or 20-items per scale. Personality and Individual Differences, 37, 1659–1666. doi:10.1016/j.paid.2004.03.001
- Jackson, C. J., & Francis, L. J. (2004). Primary scale structure of the Eysenck Personality Profiler (EPP). Current Psychology, 22, 295–305. doi:10.1007/s12144-004-1035-9