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Instruments to assess everyday functioning have utilized self-report, proxy report, clinician ratings, or direct observation of performance. Each of these methods has strengths and weaknesses. In this article we argue for the inclusion of performance-based measures of functional capacity in studies of severely mentally ill persons and describe a new(More)
Patients with schizophrenia who adhere to physicians' recommended use of medications are less likely to relapse than those who do not. Self-report measures of adherence have been criticized on a number of grounds. Here we describe a performance-based measure of medication management, the Medication Management Ability Assessment (MMAA), which represents a(More)
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