Concepedia
Journal of Nonverbal Behavior · 1979 · 50 citations · 15 references
15
Weighted kappa: Nominal scale agreement provision for scaled disagreement or partial credit.
Jacob Cohen · Psychological Bulletin · 1968 · 8.5K citations
Education, Educational Measurement, Psychology +11
The Repertoire of Nonverbal Behavior: Categories, Origins, Usage, and Coding
Paul Ekman, Wallace V. Friesen · Semiotica · 1969 · 3.3K citations
Social Sciences, Communication, Social Psychology +12
Measuring facial movement
Paul Ekman, Wallace V. Friesen · Journal of Nonverbal Behavior · 1976 · 1.2K citations
The Psychology of Depression: Contemporary Theory and Research
Samuel Henry Kraines · American Journal of Psychiatry · 1975 · 621 citations
Social Sciences, Psychiatry, Psychology +12
Darwin and Facial Expression: A Century of Research in Review.
Michael T. Ghiselin, Paul Ekman, Howard E. Gruber · Systematic Zoology · 1974 · 586 citations
Social Sciences, Evolutionary Biology, Psychology +12