Responsiveness and validity in health status measurement: a clarification.


We present data from two studies which clarify the relationship between the responsiveness and validity of instruments designed to measure health status in clinical trials. In a controlled trial of long vs short duration adjuvant chemotherapy for women with Stage II breast cancer, the Breast Cancer Chemotherapy Questionnaire (BCQ) proved valid as a measure… (More)


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@article{Guyatt1989ResponsivenessAV, title={Responsiveness and validity in health status measurement: a clarification.}, author={Gordon H. Guyatt and Richard A. Deyo and Mary E. Charlson and Mark Levine and Annie Mitchell}, journal={Journal of clinical epidemiology}, year={1989}, volume={42 5}, pages={403-8} }