Purpose

The purpose of the present study was the adaptation and evaluation of the psychometric properties of the Junior Eysenck Personality Inventory (JEPI) in a Greek sample.

Brief description

The JEPI is a questionnaire consisting of 60 self-report items designed to assess two personality dimensions: neuroticism (emotional instability) and extraversion. It also includes a lie scale. The questionnaire was translated and adapted by D. Alexopoulos and includes a back-translation by a native English speaker.

Sample

The sample consisted of 2,159 children (1,059 girls, 1,086 boys), students from the last three grades of primary school and the three grades of junior high school, aged between 9 and 16 years.

Scoring method

Each item to which the respondent answers “yes” is scored as one point, except for those items where a “no” response is scored as one point. In the case of reverse-scored items, a “no” answer receives one point and a “yes” receives zero.

Validity

The various factors of the JEPI had statistically significant correlations with the corresponding scales of the JEPQ, while the correlations of the JEPI factors with those of the E-DIPROSE were low.

Reliability

The reliability coefficients and mean correlations were low in some cases and satisfactory in others.

Main bibliographic sources

Alexopoulos, D. S. (2004). Reliability and validity of the Junior Eysenck Personality Inventory (JEPI) in Greece. Psychology, 11(3), 402–422.
Eysenck, H., & Eysenck, S. B. G. (1963). Junior Eysenck Personality Inventory (JEPI). San Diego: Educational and Industrial Testing Service (EdITS).