title: Construct Validation of the Supports Intensity Scale - Children and Adult Versions: An Application of a Pseudo Multitrait-Multimethod Approach.
abstract: This study examined the convergent validity of the Supports Intensity Scale - Adult Version (SIS-A; Thompson et al., 2015a ) and Supports Intensity Scale - Children's Version (SIS-C; Thompson et al., 2016a ). Data from SISOnline (n = 129,864) for the SIS-A and from the SIS-C standardization sample (n = 4,015) were used for analyses. Using a pseudo multitrait-multimethod model, we estimated observed support needs scores as shared trait (support needs concept) and method (type, frequency, and daily support time) variances. Overall, trait variances more strongly influenced support needs scores than method variances, supporting the convergent validity of both versions of SIS. Findings also suggested that each of three methods of measuring support needs uniquely contributed to observed support needs ratings although different patterns existed between the SIS-A and SIS-C.
authors: Hyojeong Seo, Kongju National University, Department of Special Education; Karrie A. Shogren, University of Kansas, Beach Center on Disability; Todd D. Little, Texas Tech University, Department of Educational Psychology and Leadership; James R. Thompson and Michael L. Wehmeyer, University of Kansas, Beach Center on Disability.
authors: Hyojeong
authors: H
authors: Seo
authors: Hyojeong Seo, Kongju National University, Department of Special Education; Karrie A. Shogren, University of Kansas, Beach Center on Disability; Todd D. Little, Texas Tech University, Department of Educational Psychology and Leadership; James R. Thompson and Michael L. Wehmeyer, University of Kansas, Beach Center on Disability.
authors: Karrie A
authors: KA
authors: Shogren
authors: Hyojeong Seo, Kongju National University, Department of Special Education; Karrie A. Shogren, University of Kansas, Beach Center on Disability; Todd D. Little, Texas Tech University, Department of Educational Psychology and Leadership; James R. Thompson and Michael L. Wehmeyer, University of Kansas, Beach Center on Disability.
authors: Todd D
authors: TD
authors: Little
authors: Hyojeong Seo, Kongju National University, Department of Special Education; Karrie A. Shogren, University of Kansas, Beach Center on Disability; Todd D. Little, Texas Tech University, Department of Educational Psychology and Leadership; James R. Thompson and Michael L. Wehmeyer, University of Kansas, Beach Center on Disability.
authors: James R
authors: JR
authors: Thompson
authors: Hyojeong Seo, Kongju National University, Department of Special Education; Karrie A. Shogren, University of Kansas, Beach Center on Disability; Todd D. Little, Texas Tech University, Department of Educational Psychology and Leadership; James R. Thompson and Michael L. Wehmeyer, University of Kansas, Beach Center on Disability.
authors: Michael L
authors: ML
authors: Wehmeyer
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D008297:Male; D008875:Middle Aged; D020380:Needs Assessment / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results; D012944:Social Support; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Supports Intensity Scale – Adult Version; Supports Intensity Scale – Children's Version; convergent validity; multitrait-multimethod model