Investigating Primary Psychometric Properties of Children's Depression Inventory (CDI)

The purpose of the present study is to investigate primary psychometric properties of the Persian version of children's depression inventory. 407 students, 234 boys and 173 girls, aged between 12 and 14 served as the subj-ects of this study. They were selected through multi-stage random cluster sampling.The sampling group completed Chil-dren Depression Inventory, children Depression Scale and Beck Depr-ession Inventory. Results show the total CDI Test-retest reliability and internal consistency to be 0.82 and 0.83 respectively. Also, the correlation coefficients between CDI and Chil-dren Depression Scale and Beck Depression Inventory were respe-ctively 0.79 and 0.87 (p<0.01), which indicate a satisfactory convergent validity for CDI. Confirmatory factor analysis results show five factor model of CDI fit in the Iranian sample. MANOVA results indicate that on average the total score of depression for girls was significantly higher than the one for boys. Furthermore, the total average depression for subjects aged 14 was significantly higher than the one for 12 year olds.