Validity and reliability of Turkish version of Gilliam Autism Rating Scale-2: Results of preliminary study

Abstract

The purpose of this preliminary study was to explore the validity and reliability of Turkish Version of the Gilliam Autism Rating Scale-2 (TV-GARS-2). Participants included 436 children diagnosed with autism (331 male and 105 female, mean of ages was 8.01 with SD=3.77). Data were also collected from individuals diagnosed with intellectual disability, with hearing impairment, and from typically developing children in order to examine discrimination validity of the TV-GARS-2. After carrying out Turkish translation procedure, reliability and validity of TV-GARS-2 were explored by conducting a series of analyses. Results yielded that TV-GARS-2 is a reliable and valid assessment tool to be used with individuals with autism in Turkey.