The Autism Spectrum Disorder Evaluation Scale (ASDES) was developed based on the most commonly recognized definition of Autism Spectrum Disorder (ASD) as defined by the American Psychiatric Association (APA) (2013) in the DSM-5™. It has school and home versions to document behaviour observations in the school and residential environments. It is nationally standardized for ages 3 through 18 years of age. Subscales, based on the definition, include Social-Emotional Reciprocity, Nonverbal, Relationships, Stereotyped/Repetitive, Routines/Rituals, Interests, and Sensory.
The Autism Spectrum Disorder Evaluation Scale measures the characteristics typically associated with Autism Spectrum Disorder as described by the medical profession and observed by educators, psychologists, and psychiatrists. The Home Version provides doctors, therapists, and educators with documentation and frequency of the characteristics observed in the home setting. The School Version allows educators to document observations of behaviour in the school environment. Combining both versions provides a broader assessment of the child’s social, emotional, academic, and communication strengths and weaknesses across different environments. Both scales contribute valuable information to the identification process of children and youth with Autism Spectrum Disorder. The following functions are served by the instrument:
1. Measurement of behaviour by primary observers in the school or residential environment.
2. Comparison of an individual student to a national standard for screening purposes.
3. Identification of the child’s characteristics of Autism Spectrum Disorder as defined by the American Psychiatric Association and pinpointing areas of need for behavioural intervention/improvement.
4. Identification of goals, objectives, and interventions for the student’s IEP, and program implementation with the use of the Autistic Disorder Intervention Manual.