Journal article
An evaluation of the structural validity of the shoulder pain and disability index (SPADI) using the Rasch model
Abstract
PurposeThe shoulder pain and disability index (SPADI) has been extensively evaluated for its psychometric properties using classical test theory (CTT). The purpose of this study was to evaluate its structural validity using Rasch model analysis.MethodsResponses to the SPADI from 1030 patients referred for physiotherapy with shoulder pain and enrolled in a prospective cohort study were available for Rasch model analysis. Overall fit, individual …
Authors
Jerosch-Herold C; Chester R; Shepstone L; Vincent JI; MacDermid JC
Journal
Quality of Life Research, Vol. 27, No. 2, pp. 389–400
Publisher
Springer Nature
Publication Date
2 2018
DOI
10.1007/s11136-017-1746-7
ISSN
0962-9343