Development and validation of the Arabic translation of the Level of Personality Functioning Scale—Self-Report (LPFS-SR)

Abstract

The Level of Personality Functioning Scale—Self-Report (LPFS-SR) is a self-report questionnaire designed to measure DSM-5 Alternative Model of Personality Disorders (AMPD) Criterion A, which assesses general problems in personality that pervade all areas of functioning. The present study, we translated the LPFS-SR into Arabic and examined the psychometric properties of the translated measure in a sample of 1,039 undergraduate students. In addition, we sought to validate the measure by examining its relationship to AMPD Criterion B, which measures maladaptive personality traits, in predicting general well-being. Results of the present study indicated high internal consistency for the total scale score, yet somewhat lower than typically found when using the original English version in some specific domains. Factor analyses indicated the presence of a large first component, while the specific domains were found to add valid variance in predicting well-being that was independent of this general factor, suggesting that the measure is not entirely unidimensional as applied in this sample. Both Criterion A and B measures were significantly correlated with well-being scores, with Criterion A found to significantly increment Criterion B in predicting well-being.