A-101 Correspondence between ABAS-II and VABS-II Composite Scales in a Cohort of Adults with Down Syndrome

Abstract Objective: Informant ratings of adaptive functioning are a valuable source of information that can support diagnosis and treatment planning and monitor change. The Adaptive Behavior Assessment System (ABAS-II) and Vineland Adaptive Behavior Scales (VABS-II) are well-known adaptive functioni...

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Published in:Archives of clinical neuropsychology 2022-08, Vol.37 (6), p.1253-1253
Main Authors: Ali, Sheliza, Van Pelt, Kathryn, Koehl, Lisa M, Caban-Holt, A M, Anderson-Mooney, A J, Dennis, Brandon, Head, Elizabeth, Harp, Jordan, Glueck, Amanda, Powell, David, Schmitt, Frederick
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Language:English
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Summary:Abstract Objective: Informant ratings of adaptive functioning are a valuable source of information that can support diagnosis and treatment planning and monitor change. The Adaptive Behavior Assessment System (ABAS-II) and Vineland Adaptive Behavior Scales (VABS-II) are well-known adaptive functioning questionnaires used in clinical practice. This study assessed the correspondence between ABAS-II and VABS-II composite scales in adults with Down Syndrome (DS). Method: Participants were selected from a cohort of 110 adults with DS involved in a longitudinal study examining Alzheimer’s risk. Participants were selected if they had informant ratings on both the ABAS-II and VABS-II at the same measurement wave (n = 85; M = 41.9 years-old, SD = 10.8; 55.3% female; 96.5% White). Due to non-normality, non-parametric correlations examined convergent validity of the ABAS-II and VABS-II standard scores. Results: The composite scores of similar constructs from each measure correlated significantly (ps 
ISSN:1873-5843
1873-5843
DOI:10.1093/arclin/acac060.101