Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1082584 | Journal of Clinical Epidemiology | 2010 | 8 Pages |
Abstract
Test-retest reliability of the GPE is excellent. GPE ratings are strongly influenced by current status, with the effect more obvious as transition time lengthens. This result questions whether transition ratings truly reflect change, or rather just current state. This finding also has implications for the use of GPE ratings as an external criterion of change in clinimetric studies.
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Authors
Steven J. Kamper, Raymond W.J.G. Ostelo, Dirk L. Knol, Christopher G. Maher, Henrica C.W. de Vet, Mark J. Hancock,