TY - JOUR
T1 - Factorial Validity of the Supports Intensity Scale (SIS)
AU - Kuppens, Sofie
AU - Bossaert, Goele
AU - Buntinx, Wil
AU - Molleman, Catherin
AU - Van den Abbeele, Ann
AU - Maes, Bea
PY - 2010/7
Y1 - 2010/7
N2 - The Supports Intensity Scale (SIS) was developed to provide information on the support needs of persons with intellectual disability. Our aim here was to evaluate the factorial validity of the SIS in a sample of 14,862 persons with intellectual disability. The structure of the instrument as promulgated by the developers was tested and its stability evaluated across gender, age, disability complexity, and disability severity groups. Confirmatory factor analysis supported the originally proposed subscale structure. The six-factor structure yielded strict factorial invariance across gender, age, and disability complexity, whereas invariance of factor configuration was merely established across disability severity groups. Possible explanations and implications of these findings are discussed.
AB - The Supports Intensity Scale (SIS) was developed to provide information on the support needs of persons with intellectual disability. Our aim here was to evaluate the factorial validity of the SIS in a sample of 14,862 persons with intellectual disability. The structure of the instrument as promulgated by the developers was tested and its stability evaluated across gender, age, disability complexity, and disability severity groups. Confirmatory factor analysis supported the originally proposed subscale structure. The six-factor structure yielded strict factorial invariance across gender, age, and disability complexity, whereas invariance of factor configuration was merely established across disability severity groups. Possible explanations and implications of these findings are discussed.
U2 - 10.1352/1944-7558-115.4.327
DO - 10.1352/1944-7558-115.4.327
M3 - Article
C2 - 20597725
SN - 1944-7515
VL - 115
SP - 327
EP - 339
JO - AJIDD-American Journal on Intellectual and Developmental Disabilities
JF - AJIDD-American Journal on Intellectual and Developmental Disabilities
IS - 4
ER -