Journal of Psychosomatic Research · 2000 · 1.7K citations · 23 references
MedicinePsychiatryPsychometricsSleep MedicineInsomnia DisordersSleep AssessmentSleep DisturbanceSleep HealthSleep PhysiologySleep-wake DisordersInsomnia Symptom AssessmentSleep Quality AssessmentSleep ScoringSleep Symptom AssessmentSubjective Sleep Measurement
23
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 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
Epidemiologic Study of Sleep Disturbances and Psychiatric Disorders
Daniel E. Ford · JAMA · 1989 · 2.3K citations