Journal article
Internal consistency reliability is a poor predictor of responsiveness
Abstract
BackgroundWhether responsiveness represents a measurement property of health-related quality of life (HRQL) instruments that is distinct from reliability and validity is an issue of debate. We addressed the claims of a recent study, which suggested that investigators could rely on internal consistency to reflect instrument responsiveness.Methods516 patients with chronic obstructive pulmonary disease or knee injury participating in four …
Authors
Puhan MA; Bryant D; Guyatt GH; Heels-Ansdell D; Schünemann HJ
Journal
Health and Quality of Life Outcomes, Vol. 3, No. 1,
Publisher
Springer Nature
Publication Date
12 2005
DOI
10.1186/1477-7525-3-33
ISSN
1477-7525