Findings on Happiness and subject: Extraversion in nation)

Correlate as named by investigatorPeople investigated
FindingExtraversionAdult general public, 39 nations, 1972-1998
FindingExtraversionAdult general public, 39 nations, 1972-1998
FindingExtraversion (Eysenck)Adults, general public, 30 countries, 1974-1999
FindingExtraversion vs introversionNormal adults, general public, 30 countries, 1977-1997