The influence of age, gender, ethnicity, and insomnia on Epworth sleepiness scores: A normative US population

Statistical power analysis for the behavioral sciences

Computers Environment and Urban Systems · 1990 · 65.7K citations

Public Health, Behavioral Sciences, Biostatistics +14

A New Method for Measuring Daytime Sleepiness: The Epworth Sleepiness Scale

Murray W. Johns · SLEEP · 1991 · 17.2K citations · Full text

Medicine, Neurology, Psychometrics +16

The Fatigue Severity Scale

Lauren Krupp · Archives of Neurology · 1989 · 6K citations

Medicine, Internal Medicine, Neurology +15

Reliability and Factor Analysis of the Epworth Sleepiness Scale

Murrayb W. Johns · SLEEP · 1992 · 2.1K citations · Full text

Medicine, Otolaryngology, Psychometrics +15

Daytime Sleepiness, Snoring, and Obstructive Sleep Apnea

Murray W. Johns · CHEST Journal · 1993 · 1.1K citations

Medicine, Internal Medicine, Otolaryngology +14