Assessment of Validity and Reliability of the Persian version of the Stanford Integrated Psychosocial Assessment for Transplant (SIPAT)

Abstract

Compilation and design of short and practical psychometric tools is one of the advantages and strengths of a good and standard test. The Stanford Psychosocial Assessment Questionnaire for Transplantation is designed to measure the psychosocial status of patients at the time of organ transplantation. Based on this, the main purpose of the research was to investigate the reliability and validity of the Persian version of the Stanford Psychosocial Assessment Questionnaire for Transplantation. Materials and methods: This study is an exploratory psychometric study that was conducted from September 1400 to September 1401. The statistical population of the study included all patients who were in the process of organ transplantation. 40 patients were selected in the phase of determining the reliability of the questionnaire and 200 patients were selected to determine the construct validity of the questionnaire. In addition, the face validity and content of the questionnaire were determined with the participation of 8 and 10 psychiatric experts and experts, respectively. The sampling method of patients was done in an easy and accessible way, and the sampling method of experts and specialists was done purposefully. The Persian version of the Stanford Integrated Psychosocial Assessment for Transplant (SIPAT) questionnaire was used to collect data. Exploratory factor analysis, Pearson correlation and Cronbach's alpha were used. Statistical calculations were performed using SPSS version 18 software. findings: The average impact coefficient of the items was calculated as 3.07, the average CVR was 0.90, and the average CVI was 0.85. Cronbach's alpha coefficient was 0.79 for the whole questionnaire, 0.92 for the level of patient preparation, 0.91 for social support system, 0.93 for mental stability and mental injuries, and 0.89 for lifestyle and substance use. The value of KMO index was equal to 0.86 and the significance level of Bartlett's sphericity test was equal to 0.001. In total, 4 factors were extracted from the 21 questions in the questionnaire, which explained 70.96% of the total variance. The Pearson correlation coefficient between the two stages is equal to 0.90 for the overall score, 0.88 for the dimension of patient preparation level, 0.87 for the dimension of social support system, 0.86 for the dimension of mental stability and mental injuries, and 0.86 for the dimension of lifestyle. And the use of materials was calculated as 0.78.