Hamid Allami, Samaneh Mehdipour, Zohreh Eslami,

masumeh ghasemi department of psychology and education of exceptional children, faculty of psychology and education, university of tehran, tehran, iran saeed hassanzadeh department of psychology and education of exceptional children, faculty of psychology and education, university of tehran, tehran, iran mohsen shokoohi-yekta department of psychology and education of exceptional children, faculty of psychology and education, university of tehran, tehran, iran gholamali afrooz department of psychology and education of exceptional children, faculty of psychology and education, university of tehran, tehran, iran ali akbar tahaei department of audiology, school of rehabilitation sciences, iran university of medical sciences, tehran, iran valiollah farzad department of psychology, kharazmi university, tehran, iran