Reactions to a social dilemma as a function of intragroup interactions and group performance

Abstract

We examined how group performance (success or failure) and intragroup interactions (minimal or favorable) affected responses to a social dilemma. We predicted that group failure would result in less overall cooperation, but that favorable intragroup interactions would buffer this adverse consequence. We further predicted that this buffering effect would be mediated by group identity, which would, in turn, operate through two processes, normative expectations and goal transformation. We experimentally manipulated the extent to which groups ( N = 80 four-person groups) experienced minimal or favorable intragroup interactions and succeeded or failed on an intellective task before facing, as isolated individuals, a social dilemma. Our main hypotheses were supported, and structural equation modeling and analyses of moderated mediation were largely consistent with our theoretical model. The results support a social identity approach to social dilemmas and shed light on the processes involved in intragroup cooperation.