Clinimetrics corner: The global rating of change score (GRoC) poorly correlates with functional measures and is not temporally stable


Journal Article

The Global Rating of Change Score (GRoC) is a frequently used outcome measure that is used independently to measure improvements in a patient's condition or as an anchor for other outcomes measures. The tool has been criticized for recall bias, biases in administration, and for poor reliability over time. Our findings, captured from a sample of patients with shoulder impingement, suggest that all these concerns are of merit. Our results show poor correlation of the GRoC with functional measures after 2 and 3 weeks and decay of the associative stability of the GRoC from week to week. © W. S.Maney & Son Ltd 2012.

Full Text

Duke Authors

Cited Authors

  • Garrison, C; Cook, C

Published Date

  • November 27, 2012

Published In

Volume / Issue

  • 20 / 4

Start / End Page

  • 178 - 181

Electronic International Standard Serial Number (EISSN)

  • 2042-6186

International Standard Serial Number (ISSN)

  • 1066-9817

Digital Object Identifier (DOI)

  • 10.1179/1066981712Z.00000000022

Citation Source

  • Scopus