Background: Detection of developmental delays early in life is crucial in helping children achieve their developmental potentials. Screening tools in the Arabic language are scarce necessitating the adaptation and validation of available tools in the English language.

Objective: To translate, adapt and validate the newest version of the ages and stages questionnaires (ASQ -3) to Arabic.

Methods: Five of the previously translated age groups from A-ASQ-2 (4, 10, 18, 27 and 33 months) were assessed to match the corresponding ASQ-3 version; they were adapted, translated, and field-tested before validation on a convenience sample from all Lebanese governorates. Internal consistency was assessed using Cronbach's alpha (Cα) and convergent construct validity was assessed using Pearson Correlation Coefficient (CC) comparing the A-ASQ3 scores with the Bayley scale for infant development (BSID-III) scores. Sensitivity and specificity were also computed.

A flyer will be posted in the waiting area (Appendices VIII and IX) for interested candidates to call. After securing the approval of the treating pediatricians, the RA will approach parents sitting in their waiting area and ask them if they would be interested to participate after showing them the flyer.  Interest parents will then be invited to a private meeting in private settings where he/she will thoroughly explain the study and obtain a written consent. In addition, the treating physician may wish to refer potential subjects to be enrolled in the study. Those who agree to participate will be invited to a private meeting in a private room where the research assistant will thoroughly explain the study and obtain the consent of those who agree to participate. A private room is already available in the OPD and in the private clinic.