Daytime symptoms in primary insomnia: A prospective analysis using ecological momentary assessment

The Pittsburgh sleep quality index: A new instrument for psychiatric practice and research

Daniel J. Buysse, Charles F. Reynolds, T. H. Monk et al. · Psychiatry Research · 1989 · 34.7K citations

Medicine, Psychiatry, Psychology +16

Development and validation of brief measures of positive and negative affect: The PANAS scales.

David Watson, Lee Anna Clark, Auke Tellegen · Journal of Personality and Social Psychology · 1988 · 32.1K citations

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Development and validation of brief measures of positive and negative affect: The PANAS scales.

David Watson, Auke Tellegen · Journal of Personality and Social Psychology · 1988 · 31.7K citations

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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

An inventory for measuring clinical anxiety: Psychometric properties.

Aaron T. Beck, Norman Epstein, Gary Brown et al. · Journal of Consulting and Clinical Psychology · 1988 · 11.7K citations

Social Sciences, Psychiatry, Psychology +12