Assessing the Validity and Reliability of the Persian Version of the Interpersonal Problem Solving Skills Assessment Tool in Schizophrenia

Abstract

Objective: This study aimed to translate the Assessment of Interpersonal Problem-Solving Skills (AIPSS) into Persian and to evaluate the validity and reliability of the Persian version of AIPSS to use for adults with schizophrenia. Materials & Methods: In this methodological study, the translation process was performed according to the International Quality of Life Assessment (IQOLA) protocol. The face validity of the translated AIPSS was determined based on the opinions of experts and The Content Validity Index (CVI) and Content Validity Ratio (CVR) were also calculated for each item. The Persian version of the test was performed on 52 patients with schizophrenia disorders at Tehran’s Razi Mental Hospital; they were selected using a convenience sampling method. Cronbach’s alpha coefficient was used to evaluate internal consistency. Inter-rater reliability was determined by the Intraclass Correlation Coefficient (ICC). A retest was complete on 15 patients with 2 weeks interval and ICC was used to determine the test-retest reliability. Results: Face validity was confirmed by the experts’ opinions. The Content Validity Ratio (CVR) and the Content Validity Index (CVI) were equal to one for all scenes. Cronbach's alpha coefficient for all scales was ranged between 0.511 and 0.821. The ICC in all scales were more than 0.98 for inter-rater reliability. In calculating test-retest reliability, the ICC for all scales ranged 0.733-0.893. Conclusion: Results show that the Persian version of AIPSS has acceptable face validity, content validity, internal consistency, inter-rater reliability test-retest reliability. Therefore, this instrument can be used in clinical fields and research studies to assess the social skills of Iranian patients with schizophrenia.