Questionário de Personalidade de Eysenck – Forma Revista (EPQ-R): Estudo Normativo da Versão Portuguesa.

The Eysenck Personality Questionnaire – Revised (EPQ-R) assesses the three fundamental personality dimensions: Psychoticism, Extraversion, Neuroticism, including a Lie/Social Desirability scale. This paper presents the results of the normalization study of EPQ-R in the Portuguese population, which were obtained through a large and representative community sample. A sample of 1689 subjects participated in this study (783 men and 906 women, ages 16-60 years old) from several geographic areas in Portugal. The norms of the Portuguese Version of EPQ-R were constructed considering gender and age, and significant statistical differences between several groups were found. Through a model of Item Response Theory, a DIF analysis was performed and showed the psychometric quality of the EPQ-R items in measuring the N, E, P, and L constructs, concerning gender and age variables. [ABSTRACT FROM AUTHOR]