The aim of this study was to investigate psychometric properties of Child Sexual Abuse and Gender Identity/Gender Dysphoria questionnaire in adolescents with mild intellectually disabled and with normal intelligence in Yazd. This is a descriptive cross-sectional study. The statistical population consisted of all boys and girls with mild intellectually disabled and with normal intelligence from public schools in the city of Yazd, Iran. Using multistage cluster sampling, 300 girls and boys aged 12-18 years who were selected. The tools were GIDYQ–AA and QCSA questionnaire. According to the results obtained, all correlation coefficients of the GIDYQ–AA and QCSA Questionnaire with the total score and subscales were significant for both groups (p<0.01). Cronbach's alpha coefficients calculated for the whole scale of sexual identity for intellectually disabled adolescents, 0.91, with normal IQ, 0.93 and its subscales and Cronbach's alpha coefficient in relation to the total scale of sexual abuse for intellectually disabled adolescent, 0.94, with normal IQ adolescent, 0.85 and its components separately, show the internal consistency of both questionnaires. Overall, the results showed that the scales of Child Sexual Abuse and Gender Identity/Gender Dysphoria questionnaire has a desirable and appropriate validity, reliability and it can be used for mild intellectually disabled and normal intelligence teenagers.
