Clinical Drug Investigation · 1998 · 49 citations · 31 references
Social SciencesPsychologyItem Response TheoryPsychometricsItem AnalysisLatent Mean ComparisonsMeasurement EquivalencePatient-reported Outcome MeasuresQuality Of LifeRating Scale DevelopmentPsychometric PropertiesPsychometric Test ConstructionPsychometric Validity
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The concept of illness behavior
David Mechanic · Journal of Chronic Diseases · 1962 · 619 citations
Quality of life: Concepts and definition
David Cella · Journal of Pain and Symptom Management · 1994 · 495 citations · Full text