Diagnostic Validity of the Persian version of 3rd edition of the Gilliam Autism Rating Scale (GARS-3)

Gorji, Reza; Hassanzadeh, Saeid; Ghasemzadeh, Sogand; GholamAli Lavasani, Masoud

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Diagnostic Validity of the Persian version of 3rd edition of the Gilliam Autism Rating Scale (GARS-3)

Reza Gorji¹

, Saeid Hassanzadeh ^*²

, Sogand Ghasemzadeh³

, Masoud GholamAli Lavasani³

1- Dep of Psychology, Faculty of Literature and Humanities Science, Science and Research Branch, Islamic Azad University
2- Department of Psychology, Faculty of Psychology and Education, University of Tehran , Shasanz@ut.ac.ir
3- Department of Psychology, Faculty of Psychology and Education, University of Tehran

Abstract: (120 Views)

Introduction: Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder, and early diagnosis is crucial for effective interventions. The Gilliam Autism Rating Scale (GARS-3) is a widely used tool for diagnosing ASD.
Methods: This descriptive research aimed to validate the Persian version of GARS-3. The sample consisted of 318 individuals aged 3 to 22 years with ASD, as well as normal, mentally retarded, and deaf individuals. Purposeful sampling was used to select the participants.
Results: The results indicated that the Persian version of GARS-3 has good diagnostic and discriminative ability between individuals with ASD and those without (p < 0.05).
Conclusion: The study recommends using GARS-3 for screening ASD in Iranian children, emphasizing the importance of using DSM-5 diagnostic criteria alongside the scale’s desirable psychometric properties.