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Direct linkWessels, Marleen D.; Paap, Muirne C. S.; Van der Putten, Annette A. J. – Journal of Intellectual & Developmental Disability, 2021
Background: Research about the psychometric properties of the Behavioural Appraisal Scales (BAS) in people with profound intellectual and multiple disabilities (PIMD) is limited. This study evaluates invariance in factor structure, item bias and convergent validity of the BAS. Methods: Data on the BAS from two studies (n = 25; n = 52) were…
Descriptors: Test Validity, Ability Identification, Severe Intellectual Disability, Multiple Disabilities
