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The portuguese version of the personal and social performance scale (PSP): reliability, validity, and relationship with cognitive measures in hospitalized and community schizophrenia patients

2011; Cambridge University Press; Volume: 26; Issue: S2 Linguagem: Inglês

10.1016/s0924-9338(11)73147-9

1778-3585

Sofia Brissos, João Gama Marques, Filipa Palhavã, Susana Mexia, Ana Lisa Carmo, M. Carvalho, C. Dias, J.D. Franco, Rita Bouceiro-Mendes, Pedro Zuzarte, Ana Isabel Carita, Andrew Molodynski, Maria Luísa Figueira,

Family Caregiving in Mental Illness

Introduction Deficits in social functioning are a core feature of schizophrenia and are influenced by both symptomatic and neurocognitive variables. Objectives In the present study we aimed to determine the reliability and validity of the Portuguese version of the Personal and Social Performance (PSP) scale, and possible correlations with measures of cognitive functioning. Methods One-hundred and four community and inpatients with schizophrenia were assessed using measures of social functioning and symptom severity alongside measures of executive function, processing speed and verbal memory. Results The reliability of the PSP was found to be satisfactory, with a Cronbach's alpha coefficient of 0.789. Inter-rater reliability in the four domains of the PSP varied from 0.430 to 0.954. Low-functioning patients (PSP < 70) were older, had longer duration of illness, were more symptomatic and had worse cognitive performances, as compared to high-functioning patients (PSP ≥ 70). In a regression model, deficits in social functioning were strongly predicted both by symptomatic and neurocognitive variables; these together accounted for up to 62% of the variance. Conclusions The present study supports the reliability and validity of the Portuguese language version of the PSP and further supports the original measure. The co-administration of brief cognitive assessments with measures of functioning may lead to more focused interventions, possibly improving outcomes in this group.