Disparities among priority populations (defined here to include members of racial, ethnic, and other sociodemographic groups) have been well documented in terms of access to health and mental health services as well as delivery of care and medical procedures. Healthcare decisions are often made based on assessments of the health status of individuals; however, as illustrated in a recent volume of reviews, evidence of the cultural equivalence of health-related measures is sparse. The major goal of the special issue is to provide state-of-the-art overviews of both qualitative and quantitative methods that can be used to examine measurement equivalence.
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