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- Title
Assessing Autism Spectrum Disorder in People with Sensory Impairments Combined with Intellectual Disabilities.
- Authors
de Vaan, Gitta; Vervloed, Mathijs P. J.; Peters-Scheffer, Nienke C.; van Gent, Tiejo; Knoors, Harry; Verhoeven, Ludo
- Abstract
People with sensory impairments combined with intellectual disabilities show behaviours that are similar to Autism Spectrum Disorder (ASD). The instrument Observation of Autism in people with Sensory and Intellectual Disabilities (OASID) was developed to diagnose ASD in this target group. The current study focuses on the psychometric properties of OASID. Sixty individuals with intellectual disabilities in combination with visual impairments and/or deafblindness participated in this study. The OASID assessment was administered and rated by three independent observers. By means of expert consensus cut-off scores for OASID were created. To determine the concurrent validity OASID was compared with the Pervasive Developmental Disorder for People with Mental Retardation (PDD-MRS) and the Childhood Autism Rating Scale second edition (CARS-2). The intra-rater reliability, the inter-rater reliability, internal consistency and concurrent validity of OASID were good to excellent. Cut-off scores were established based on criteria from the DSM-5. OASID was able to differentiate between four severity levels of ASD.
- Subjects
DIAGNOSIS of autism; AUTISM risk factors; CLASSIFICATION of mental disorders; PEOPLE with intellectual disabilities; PSYCHOMETRICS; RESEARCH evaluation; COMORBIDITY; SENSORY disorders; INTER-observer reliability; SEVERITY of illness index; PERVASIVE child development disorders; RESEARCH methodology evaluation; DEAF-blind disorders; DISEASE complications
- Publication
Journal of Developmental & Physical Disabilities, 2018, Vol 30, Issue 4, p471
- ISSN
1056-263X
- Publication type
Article
- DOI
10.1007/s10882-018-9597-x