Factor structure and measurement invariance across groups of the Italian Eysenck Personality Questionnaire - Short form (EPP-S)

• Published in: Personality and individual differences Vol. 123; pp. 76 - 80
• Main Authors: Picconi, Laura, Jackson, Chris J., Balsamo, Michela, Tommasi, Marco, Saggino, Aristide
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.03.2018; Elsevier Science Ltd
• Subjects: Age; Confirmatory factor analysis; EPP-S; Extraversion; Eysenck Personality Profiler-Short; Factor structure; Gender; Gender and age differences; Lying; Males; Measurement; Measurement invariance; Men; Neuroticism; Personality tests; Personality traits; Psychosis; Psychoticism; Questionnaires; Young adults; Neuroticism; Factor structure; Extraversion; Eysenck Personality Profiler-Short; EPP-S; Psychoticism; Gender and age differences; Measurement invariance
• ISSN: 0191-8869; 1873-3549
• DOI: 10.1016/j.paid.2017.11.013

The Eysenck Personality Profiler (EPP; Eysenck, Barrett, Wilson, & Jackson, 1992) measures traits at both the super factor level and the primary scale level, yielding three super factors (Extraversion, Neuroticism, and Psychoticism) and 21 primary scales, as well as a Lie scale. The Eysenck Personality Profiler-Short (EPP-S) is a direct development of the EPP. The primary scales of the EPP-S were examined in a sample of 1304 subjects (53.5% females), with mean age of 40.6years, first, to determine their factor structure. Confirmatory factor analysis showed that the EPP-S fits a three factor structure reasonably well. Second, results provide evidence that support the gender and age invariance. Woman are higher on N scales, males on P and E scales. E and P appeared to increase in young adults, while N decrease (Eysenck, Wilson, & Jackson, 2000). Our results suggest the EPP-S can provide measures of personality traits that are not overly affected by individual characteristics such as gender or age. •Factor structure and measurement invariance of the EPP-S is proposed.•A sample of 1394 subjects, from 17 to 84years old•The three factor structure showed a reasonable fit to the data.•Results provide evidence that support the gender and age invariance.