[From Eysenck to Costa and McCrae: a proposal for a change in CBA--Schedule 5]

This study is an explorative research aiming to revise Schedule 5 of Cognitive Behavioural Assessment 2.0 (CBA), that is a reduced version of the Eysenck Personality Questionnaire (EPQ-R). The main goal of this work is to adapt this inventory to the Big Five model by adding new items with good psychometric characteristics, according to the up-to-date Five-Factor personality model.

These items were chosen on the basis of correlations between the scales of three personality inventories: EPQ-R, Neo Personality Inventory-Revised (NEO PI-R) and International Personality Item Pool (IPIP) test. The questionnaires have been submitted to a sample of 159 subjects, aged 35 to 65.

First results confirm good indicators for the dimensions extraversion and Neuroticism, while Psychoticism did not exhibit significant correlations. Moreover, three dimensions in the NEO PI-R and IPIP test (Openness to Experience, Agreeableness, Conscientiousness) showed good psychometric characteristics.

To obtain a new revised form of CBA 2.0 Schedule 5, we suggest the substitution of Psychoticism with three more consistent dimensions belonging to both the NEO PI-R and IPIP test: Openness to experience, agreeableness, conscientiousness. We also propose the new items for these dimensions to be selected from the short form of the NEO PI-R, the NEO Five Factor Inventory (NEO-FFI), as such selection has been already validated.