Hyewon Chung1, Jiseon Kim2, Ryoungsun Park3, Alyssa M Bamer2, Fraser D Bocell2, Dagmar Amtmann2. 1. Department of Education, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea. hyewonchung7@gmail.com. 2. Department of Rehabilitation Medicine, University of Washington, Box 354237, Seattle, WA, 98195, USA. 3. Theoretical and Behavioral Foundations Division, Wayne State University, 5425 Gullen Mall, Detroit, MI, 48202, USA.
Abstract
PURPOSE: The University of Washington Self-Efficacy Scale (UW-SES) was originally developed for people with multiple sclerosis (MS) and spinal cord injury (SCI). This study evaluates the measurement invariance of the 6-item short form of the UW-SES across four disability subgroups. Evidence of measurement invariance would extend the UW-SES for use in two additional diagnostic groups: muscular dystrophy (MD) and post-polio syndrome (PPS). METHODS: Multi-group confirmatory factor analysis was used to evaluate successive levels of measurement invariance of the 6-item short form, the UW-SES: (a) configural invariance, i.e., equivalent item-factor structures between groups; (b) metric invariance, i.e., equivalent unstandardized factor loadings between groups; and (c) scalar invariance, i.e., equivalent item intercepts between groups. Responses from the four groups with different diagnostic disorders were compared: MD (n = 172), MS (n = 868), PPS (n = 225), and SCI (n = 242). RESULTS: The results of this study support that the most rigorous form of invariance (i.e., scalar) holds for the 6-item short form of the UW-SES across the four diagnostic subgroups. CONCLUSIONS: The current study suggests that the 6-item short form of the UW-SES has the same meaning across the four diagnostic subgroups. Thus, the 6-item short form is validated for people with MD, MS, PPS, and SCI.
PURPOSE: The University of Washington Self-Efficacy Scale (UW-SES) was originally developed for people with multiple sclerosis (MS) and spinal cord injury (SCI). This study evaluates the measurement invariance of the 6-item short form of the UW-SES across four disability subgroups. Evidence of measurement invariance would extend the UW-SES for use in two additional diagnostic groups: muscular dystrophy (MD) and post-polio syndrome (PPS). METHODS: Multi-group confirmatory factor analysis was used to evaluate successive levels of measurement invariance of the 6-item short form, the UW-SES: (a) configural invariance, i.e., equivalent item-factor structures between groups; (b) metric invariance, i.e., equivalent unstandardized factor loadings between groups; and (c) scalar invariance, i.e., equivalent item intercepts between groups. Responses from the four groups with different diagnostic disorders were compared: MD (n = 172), MS (n = 868), PPS (n = 225), and SCI (n = 242). RESULTS: The results of this study support that the most rigorous form of invariance (i.e., scalar) holds for the 6-item short form of the UW-SES across the four diagnostic subgroups. CONCLUSIONS: The current study suggests that the 6-item short form of the UW-SES has the same meaning across the four diagnostic subgroups. Thus, the 6-item short form is validated for people with MD, MS, PPS, and SCI.
Authors: Patricia N Matsuda; Anne Shumway-Cook; Alyssa M Bamer; Shana L Johnson; Dagmar Amtmann; George H Kraft Journal: PM R Date: 2011-07 Impact factor: 2.298
Authors: Dagmar Amtmann; Alyssa M Bamer; Karon F Cook; Robert L Askew; Vanessa K Noonan; Jo Ann Brockway Journal: Arch Phys Med Rehabil Date: 2012-05-07 Impact factor: 3.966
Authors: Andrea Giordano; Silvia Testa; Marta Bassi; Sabina Cilia; Antonio Bertolotto; Maria Esmeralda Quartuccio; Erika Pietrolongo; Monica Falautano; Monica Grobberio; Claudia Niccolai; Beatrice Allegri; Rosa Gemma Viterbo; Paolo Confalonieri; Ambra Mara Giovannetti; Eleonora Cocco; Maria Grazia Grasso; Alessandra Lugaresi; Elisa Ferriani; Ugo Nocentini; Mauro Zaffaroni; Alysha De Livera; George Jelinek; Alessandra Solari; Rosalba Rosato Journal: Qual Life Res Date: 2019-11-09 Impact factor: 4.147