1. University of Novi Sad, Faculty of Medicine, Department of Psychology , Hajduk Veljkova 3 , Novi Sad , Serbia
2. Institution for Mentally Disabled adult Persons “Otthon” , Stara Moravica , Serbia
3. University of Novi Sad, Faculty of Medicine, Department of Special Education and Rehabilitation , Hajduk Veljkova 3 , Novi Sad , Serbia