What sample sizes for reliability and validity studies in neurology?

The Hospital Anxiety and Depression Scale

A. S. Zigmond, R. P. Snaith · Acta Psychiatrica Scandinavica · 1983 · 46.6K citations

Social Sciences, Psychiatry, Psychology +13

Coefficient Alpha and the Internal Structure of Tests

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

Social Sciences, Educational Assessment, Educational Measurement +14

The MOS 36-item short-form health survey (SF-36). I. Conceptual framework and item selection.

John E. Ware, Cathy D. Sherbourne · PubMed · 1992 · 34K citations

Pharmacy, Health Sciences, Geriatric Assessment +16

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John E. Ware, Cathy D. Sherbourne · Medical Care · 1992 · 29.8K citations

Pharmacy, Health Policy, Geriatric Assessment +16

EuroQol - a new facility for the measurement of health-related quality of life

Health Policy · 1990 · 15.8K citations

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