- Autism spectrum disorder is associated with lower ADAPT scores in clients with intellectual disabilities.
- Depressive mood disorder is associated with higher ADAPT scores among clients with intellectual disabilities.
- Greater number of psychiatric comorbidities relates to lower ADAPT scores, risking misclassification of intellectual disability or borderline functioning.
J Appl Res Intellect Disabil. 2026 Jul;39(4):e70292. doi: 10.1111/jar.70292.
ABSTRACT
BACKGROUND: Assessment of adaptive functioning is part of the classification of intellectual disability and borderline intellectual functioning and important in estimating support needs. Adaptive functioning may be impaired in clients with psychiatric comorbidity. We investigated relationships between adaptive functioning and psychiatric comorbidity in individuals with intellectual disabilities or borderline intellectual functioning using the ADAPT.
METHOD: ADAPT scores of clients with comorbid psychiatric disorders were compared with those of clients without comorbidity (N = 4376).
RESULTS: In clients with intellectual disabilities, ASD was associated with lower ADAPT scores while depressive mood disorder was associated with higher ADAPT scores. We found a negative relationship between number of psychiatric disorders and mean total ADAPT score.
CONCLUSION: When determining the severity of an intellectual disability or using the V-code borderline intellectual functioning, ASD and multiple comorbidities must be taken into account to prevent an intellectual disability or borderline intellectual functioning from being incorrectly classified.
PMID:42578881 | DOI:10.1111/jar.70292
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