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The adaptive ability performance test ( ADAPT ): A factor analytic study in clients with intellectual disabilities
Author(s) -
Jonker Femke,
Looff Peter,
Erp Sara,
Nijman Henk,
Didden Robert
Publication year - 2023
Publication title -
journal of applied research in intellectual disabilities
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.056
H-Index - 63
eISSN - 1468-3148
pISSN - 1360-2322
DOI - 10.1111/jar.13044
Subject(s) - intellectual disability , borderline intellectual functioning , psychology , adaptive functioning , test (biology) , confirmatory factor analysis , exploratory factor analysis , intellectual ability , developmental psychology , population , clinical psychology , adaptive behaviour , psychometrics , structural equation modeling , cognition , psychiatry , medicine , machine learning , computer science , paleontology , environmental health , biology
Background The adaptive ability performance test (ADAPT) was developed to assess adaptive skills in individuals with intellectual disabilities and borderline intellectual functioning, with or without mental disorders. As a follow‐up to earlier research on the ADAPT, a factor analytic study was conducted. Method One thousand and sixty six ADAPTs from clients with (suspected) intellectual disabilities or borderline intellectual functioning and 129 ADAPTs from participants from the general population were collected along with other characteristics (e.g., IQ, psychiatric classifications, living situation). Results An exploratory factor analysis (EFA) was performed and resulted in good fit indices. Subsequent confirmatory factor analysis (CFA) and multigroup CFA showed acceptable to good fit indices. This resulted in an instrument with eight factors and 62 items. Conclusion Factor analytic results suggest that the ADAPT is a valid instrument that measures adaptive skills in individuals with intellectual disabilities or borderline intellectual functioning.