RESUMEN
BACKGROUND: This study aimed to investigate the psychometric properties of children's somatization inventory (CSI-24) in a sample of Iranian school adolescents. MATERIALS AND METHODS: In this study, after translating and back-translating CSI-24, comparisons were made with the original version. The study population consisted of 394 school adolescents. Cronbach's alpha method was used to examine the reliability of the scale. Furthermore, the correlation of the scale with the Symptom Checklist-90-Revised was evaluated to determine its criterion validity, using Pearson's correlation coefficient. Exploratory and confirmatory factor analysis methods were applied for construct validity. RESULTS: Investigation of the psychometric properties of the Iranian version of CSI-24 showed its high reliability and confirmatory factor analysis results show the model's satisfactory fitting. CONCLUSION: The Persian version of CSI-24 is a useful self-report tool for evaluating the physical complaints of Iranian school adolescents aged between 12 and 18 years.
