Sex-free and sex-related components of the Eysenck Personality Questionnaire (EPQ) neuroticism scale among Finnish and Turkish students

Previous studies have suggested that the Neuroticism scale (N) of the Eysenck Personality Questionnaire (EPQ) reflects two different dimensions, of which the first is sex-related (N-S) and the second sex-free (N-A). The N-S component is characterized by social sensitivity and worry while N-A reflects moodiness, irritability and boredom. The purpose of this study was to investigate the internal structure of the N scale in samples of 320 Finnish and 230 Turkish students. The bi-dimensional structure suggested by Francis had an acceptable fit to data in the Finnish and Turkish samples. Higher N-S and N scores correlated with being a woman in the Turkish sample. Neither N nor N-S scores were related to sex in the Finnish sample. ANOVA results showed the main effect of sex on N and N-S scores and the main effect of culture (Finnish vs. Turkish) on N and N-A. Turkish women scored higher in N and N-S scales than the other groups. The possible cultural and social reasons for the sex differences on the N scale score were discussed