Translation, Cross-Cultural Adaptation, and Psychometric Evaluation of Features of the Infant and Child Feeding Questionnaire (ICFQ)

Objective Feeding disorders in children have multiple adverse consequences at personal, economic, and sociocultural levels, making them one of the major public health challenges. As speech and language pathologists play a key role in the multidisciplinary management of these disorders, they require valid and reliable tools to screen infants’ and children’s feeding behaviors. Therefore, this study aimed to translate the infant and child feeding questionnaire (ICFQ) into Persian and to evaluate its psychometric properties among Persian-speaking children. Materials & Methods This psychometric study was conducted on 220 children aged 0–4 years (100 children with feeding disorders and 120 typically developing children). Translation process included forward translation, evaluation of face and content validity, backward translation, and cognitive interviews for face validity. Construct validity was assessed through convergent validity with the Pedi-EAT questionnaire and known-groups validity. Criterion validity and diagnostic accuracy (sensitivity, specificity, and cut-off point) were also evaluated. Data analysis was performed using SPSS software, version 25, applying statistical tests such as Pearson’s correlation coefficient, independent t-test, chi-square test, and ROC analysis. Results The Persian version of the ICFQ demonstrated satisfactory validity and acceptable psychometric properties. The content validity index (CVI) was 0.95, indicating excellent content validity. The Persian version of the ICFQ demonstrated a significant correlation with the Pedi-EAT questionnaire (r=0.46, P