FACTOR STRUCTURE OF THE EYSENCK PERSONALITY QUESTIONNAIRE (EPQ/R) - EXPLORATORY ANALYSIS

The Czech version of the Eysenck Personality Questionnaire (EPQ/R) was subjected to psychometric analysis based on responses of 2212 subjects (males=1203, average age 28.2, SD=11.3; females=1009, average age=28.9, SD=10.9). The exploratory factor analysis (maximum likelihood, extraction according to postulated four dimensional space, rotation to varimax criterion) accounted for 19.5% of variance. The factor structure approximated satisfactorily the simple structure for E, N and L scales only. The internal consistency analyses of the EPQ/R scales suggest item redundancy. Fewer items might provide more efficient measurement. The MANOVA of the EPQ/R scales using sex and age intervals (16-20, 21-30, 31-40, 41-55 ys) as classification variables revealed the statistically significant interaction of the independent variables. The means, SD, skewness, and curtoisis of the scales distribution are Presented with regard to sex and age intervals.