. . . . . "4.2301E-1"^^ . "4.0E1"^^ . "1.61794E-1"^^ . "6.35991E-2"^^ . "https://data.cooperationdatabank.org/vocab/prop/gender" . "https://data.cooperationdatabank.org/vocab/prop/heterogeneousGender" . "M. L. Clark" . "1983-03-01:00"^^ . . . "5.0E-1"^^ . "120"^^ . "120"^^ . "2.69E-1"^^ . . . . "2"^^ . "5.0E-1"^^ . . "2"^^ . . "1982"^^ . "Published Article" . "Prisoner's Dilemma Game" . "Lab" . "Partner" . "Repeated" . . "2020-12-16T23:36:55.287Z"^^ . . . . "2020-12-01T00:00:00.000Z"^^ . .