Assessing and understanding measurement equivalence in health outcome measures. Issues for further quantitative and qualitative inquiry.
McHorney
Colleen A
CA
Outcomes Research & Management, Merck & Co., Inc., West Point, Pennsylvania 19486, USA. colleen@merck.com
Fleishman
John A
JA
D015982:Bias; D003431:Cross-Cultural Comparison; D005006:Ethnicity / Q000706:statistics & numerical data*; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D011581:Psychological Tests; D011594:Psychometrics / Q000379:methods*