Haggbloom, S. J. et al. (2002). "The 100 Most Eminent Psychologists of the 20th Century"(subscription required). Review of General Psychology. Vol. 6, No. 2, 139–15. doi:10.1037/1089-2680.6.2.139. Haggbloom and his team combined three quantitative variables: citations in professional journals, citations in textbooks, and nominations in a survey given to members of the Association for Psychological Science, with three qualitative variables (converted to quantitative scores): National Academy of Sciences (NAS) membership, American Psychological Association (APA) President and/or recipient of the APA Distinguished Scientific Contributions Award, and surname used as an eponym. Then the list was rank ordered. Ekman was #59.
Haggbloom, S. J. et al. (2002). "The 100 Most Eminent Psychologists of the 20th Century"(subscription required). Review of General Psychology. Vol. 6, No. 2, 139–15. doi:10.1037/1089-2680.6.2.139. Haggbloom and his team combined three quantitative variables: citations in professional journals, citations in textbooks, and nominations in a survey given to members of the Association for Psychological Science, with three qualitative variables (converted to quantitative scores): National Academy of Sciences (NAS) membership, American Psychological Association (APA) President and/or recipient of the APA Distinguished Scientific Contributions Award, and surname used as an eponym. Then the list was rank ordered. Ekman was #59.