The EPQ is a 90-item self-report personality inventory [6] that has been widely used for personality assessment in psychiatry and other medical fields. Factor analysis of both English and French versions revealed four dimensions that have been labelled Extraversion, Neuroticism, Psychoticism, and Social desirability (Lie scale). Reliabilities of the resulting scales, and correlations between factors, were found to be similar between English and French versions. In particular, using three different French samples, Eysenck [6] reported Cronbach alpha coefficients of 0.78 to 0.87 for neuroticism.
