ernest tupes and raymond christal came up with the big five personality theory.
who came up with the big five personality theory?
ernest tupes and raymond christal
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so ho cho, a korean psychologist (yonsei university), and the others carried out a questionnaire about blood-typical items to subjects and discovered statistical differences as expected. however, the difference was not found when the five factor model for big five personality traits was administered to the same subjects. another korean researcher sohn (yonsei university) re-analyzed cho's data. he found that several independent items of the big five personality test detected differences according to each blood-typical stereotype. however, these differences became extinct in the process of plural items being gathered to five factors (big five).
blood type personality theory