Gender Differences in Personality Traits of Heroin Addicts and Cannabis Users Measured by Eysenck Personality Questionnaire (EPQ)

Abstract

The aim of the present study was to analyse gender differences in the average results on EPQ scales (psychoticism, extraversion, neuroticism, lie) among heroin addicts, cannabis users and control group, as well as to examine moderating effects of gender on personality traits measured by EPQ scales. Research has been carried out in three groups of male and female subjects: heroin addicts, cannabis users and control group. The heroin addicts had significantly higher results on the psychoticism and neuroticism scale and lower results on extraversion and lie scales than the control group. The same pattern has been found within female results, with an exception of the extraversion scale results, where statistically significant differences among examined groups were not identified. Within the group of heroin addicts, females had significantly higher results on the psychoticism and neuroticism scale. In the cannabis users group, females had higher average results on the neuroticism scale than males.