Investigating Potential Gender-Based Differential Item Functioning for Items in the Kansas City Cardiomyopathy Questionnaire (KCCQ) Physical Limitations Domain
Abstract:Background: Women with heart failure report worse health-related quality of life, on average, than men.Whether this is due to true differences in care or that women and men interpret and respond to survey questions differently is unknown. In this study, we investigate potential gender-based differential item functioning (DIF) on the Kansas City Cardiomyopathy Questionnaire (KCCQ) Physical Limitations (PL) domain.Methods: Using data from Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Train… Show more
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