Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by significant impairments in social interaction and communication, as well as stereotyped behaviors. As a spectrum, individuals within this group may exhibit impairments or disorders of varying degrees across different areas.
Autism Behavior Checklist (ABC; Krug, Arick, & Almond, 2008). In this study, a pilot study on the validity and reliability of the Turkish adaptation of the Autism Behavior Checklist (ABC; Krug, Arick, & Almond, 2008) was conducted.
The scale, developed by Krug et al. (1993) and commonly referred to as the ABC, is among the most frequently used scales in many countries for screening autism and evaluating education (Bildt et al. 2005, Eaves et al. 2000, Sevin et al. 1991). The ABC is one of the five subscales of the Autism Screening Instrument for Educational Planning (ASIEP-2). The other subscales of the ASIEP-2 measure verbal behavior, interaction, learning rate, and educational performance. First published in 1978, the ASIEP was republished in 1993 under the name ASIEP-2, incorporating findings from studies conducted during that period without any changes to the scale itself (Krug et al. 1993). The ABC is a 57-item assessment tool consisting of five subscales: sensory (9), relationship-building (12), body and object use (12), language skills (13), and social and self-care skills (11). The lowest possible score on the scale is 0, and the highest is 159. One of the ABC’s key advantages is that it is an easy-to-administer tool that allows for the collection of information from both teachers and parents (Krug et al. 1993).