ABSTRACT
OBJECTIVE: Personal and social performance scale (PSP) has been reported as useful tool for the assessment of functioning in the psychiatric population. The authors wanted to assess the reliability and validity of the Korean version of the PSP (K-PSP). METHODS: One hundred ten patients, including out-patients and in-patients, diagnosed as schizophrenia and schizoaffective disorder according to the DSM-IV criteria were participated in the study. Subjects were assessed with K-PSP, Positive and negative syndrome scale (PANSS), Global assessment functioning scale (GAF),and Clinical global impression-severity (CGI-S) to evaluate cross-validation. Statistical analysis was done by the calculation of Cronbach's alpha, Pearson correlation coefficient. RESUTLS: The Cronbach's alpha coefficient of K-PSP was 0.79. The correlations of each domain of K-PSP with the total score of K-PSP were statistically significant (r= -0.46~-0.84, p<0.001). The inter-rater reliabilities of the total score of K-PSP was 0.79 (p<0.001) and individual score (r=0.775~0.783, p<0.001) relatively high. The total score of K-PSP showed a meaningful correlations with those of PANSS (r=-0.60, p<0.001), GAF (r=-0.71, p<0.001) and CGI-S (r=0.60, p<0.001). CONCLUSION: The K-PSP is the useful tool for assessment of functioning in the psychiatric population. So K-PSP can be widely used in the clinical practice and psychiatric studies.