Psychometric properties of the EQ-5D in a study of people with mild to moderate dementia

“Mini-mental state”

Marshal F. Folstein, Susan E. Folstein, Paul R. McHugh · Journal of Psychiatric Research · 1975 · 86.9K citations

The Measurement of Observer Agreement for Categorical Data

J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 78.9K citations · Full text

Public Health, Biostatistics, Categorical Data Analysis +12

A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation

Mary E. Charlson, Peter Pompei, Kathy L. Aleš et al. · Journal of Chronic Diseases · 1987 · 49.9K citations

Public Health, Biostatistics, Clinical Classification Systems +15

A power primer.

Jacob Cohen · Psychological Bulletin · 1992 · 42.2K citations

Public Health, Behavioral Sciences, Psychology +17

Intraclass correlations: Uses in assessing rater reliability.

Patrick E. Shrout, Joseph L. Fleiss · Psychological Bulletin · 1979 · 23K citations

Social Sciences, Psychology, Individual Differences +14