Conference Proceedings
Assessing measurement invariance of MSQOL-54 across Italian and English versions
A Giordano, S Testa, M Bassi, S Cilia, A Bertolotto, ME Quartuccio, E Pietrolongo, M Falautano, M Grobberio, C Niccolai, B Allegri, RG Viterbo, P Confalonieri, AM Giovannetti, E Cocco, MG Grasso, A Lugaresi, E Ferriani, U Nocentini, M Zaffaroni Show all
Quality of Life Research | SPRINGER | Published : 2020
Abstract
Purpose: The Multiple Sclerosis Quality of Life-54 (MSQOL-54) is a specific multiple sclerosis (MS) health-related quality of life inventory consisting of 52 items organized into 12 subscales plus two single items. No study was found in literature assessing its measurement invariance across language versions. We investigated whether MSQOL-54 items provide unbiased measurements of underlying constructs across Italian and English versions. Methods: Three constrained levels of measurement invariance were evaluated: configural invariance where equivalent numbers of factors/factor patterns were required; metric invariance where equivalent factor loadings were required; and scalar invariance where..
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