The Social Identity Approach
The social identity approach explains trust in strangers as a function of group-based stereotypes or in-group favouring behaviours based on salient group memberships. With regard to ingroup favoritism, people generally think well of strangers but expect better treatment from in-group members in comparison to out-group members. This greater expectation then translates into a higher propensity to trust an in-group rather than out-group member. It has been pointed out that it is only advantageous to form such expectations of an in-group stranger if they too know the group membership of the recipient.
There is considerable empirical activity related to the social identity approach. Allocator studies have frequently been employed to understand group-based trust in strangers. They may be operationalised as unilateral or bilateral relationships of exchange. General social categories such as university affiliation, course majors, and even ad-hoc groups have been used to distinguish between in-group and out-group members. In unilateral studies of trust, the participant would be asked to choose between envelopes containing money that was previously allocated by an in-group or out-group member. They would have had no prior or future opportunities for interaction, simulating Brewer’s notion that group membership was sufficient in bringing about group-based trust and hence cooperation. Participants could expect an amount ranging from nothing to the maximum value an allocator could give out. In bilateral studies of trust have employed an investment game devised by Berg and colleagues where individuals could choose to give a portion or none of their money to another. Any amount given would be tripled and the receiver would then decide on whether they would return the favour by giving money back to the sender. Trusting behaviour on the part of the sender and the eventual trustworthiness of the receiver was exemplified through the giving of money.
The above empirical research has demonstrated that when group membership is made salient and known to both parties, trust is granted more readily to in-group members than out-group members. This occurred even when the in-group stereotype was comparatively less positive than an out-group’s (e.g. psychology versus nursing majors), in the absence of personal identity cues, and when participants had the option of a sure sum of money (i.e. in essence opting out of the need to trust a stranger). In contrast, when only the recipient was made aware of group membership trust becomes reliant upon group stereotypes. The group with the more positive stereotype was trusted (e.g. one’s university affiliation over another), even over that of the in-group (e.g. nursing over psychology majors). Another reason for in-group favouring behaviours in trust could be attributed to the need to maintain in-group positive distinctiveness, particularly in the presence of social identity threat. It should also be noted that trust in out-group strangers increased when personal cues to identity were revealed.
Read more about this topic: Trusted, Psychology
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