The COSMIN study reached international consensus on taxonomy, terminology, and definitions of measurement properties for health-related patient-reported outcomes

Coefficient Alpha and the Internal Structure of Tests

Lee J. Cronbach · Psychometrika · 1951 · 43.2K citations · Full text

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Quality criteria were proposed for measurement properties of health status questionnaires

Caroline B. Terwee, Sandra D.M. Bot, Michiel R. de Boer et al. · Journal of Clinical Epidemiology · 2006 · 10.8K citations · Full text

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What is coefficient alpha? An examination of theory and applications.

José M. Cortina · Journal of Applied Psychology · 1993 · 8.1K citations

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The COSMIN checklist for assessing the methodological quality of studies on measurement properties of health status measurement instruments: an international Delphi study

Lidwine B. Mokkink, Caroline B. Terwee, Donald L. Patrick et al. · Quality of Life Research · 2010 · 4.2K citations · Full text

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Validity of psychological assessment: Validation of inferences from persons' responses and performances as scientific inquiry into score meaning.

Samuel Messick · American Psychologist · 1995 · 4K citations

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