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Trends in Psychology

On-line version ISSN 2358-1883


SILVEIRA, Liége Barbieri; OLIVEIRA, Sérgio Eduardo Silva de  and  BANDEIRA, Denise Ruschel. Validity Evidences of the Inventory of Personality Organization - Brasil (IPO-Br): Its Relation with the Five-Factor Model of Personality. Trends Psychol. [online]. 2018, vol.26, n.4, pp.1875-1889. ISSN 2358-1883.

The aim of the present study was to investigate evidences of convergent and incremental validity for the Brazilian version of the Inventory of Personality Organization (IPO-Br), an instrument that evaluates pathological functioning of personality. The sample included 170 individuals of which 61.2% were patients attending psychiatric or psychological treatment. The average difference for clinical and non-clinical groups were compared, and correlational and multivariate analyses were performed between the IPO-Br and of the Bateria Fatorial da Personalidade, a Brazilian measure of the Five-Factor Model (FFM). Moderate to high positive correlations were found between the IPO-Br factors and the Neuroticism dimension. In addition, the FFM explained between 27 and 68% of the variance of the IPO-Br factors. The IPO-Br was also able to differentiate people with and without psychopathological indicators, as well as capable to increment the explanation of psychiatric severity beyond the explanation given by the FFM, indicating adequate evidences of validity and clinical utility of the IPO-Br.

Keywords : Personality; pathology of personality; Five-Factor Model; evidences of validity.

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