Credibility assessments of alibi accounts: the role of cultural intergroup bias.

Research has shown that judges and jurors are influenced by suspect ethnicity and that they might discriminate against out-group suspects in making decisions. This study examined the tendency to favor in-group members, as predicted by social identity theory, in assessing alibi credibility. Forty Israeli-Jewish and 40 Israeli-Arab participants assessed the credibility of an alibi statement provided by a suspect who was either Israeli-Jewish or Israeli-Arab. Findings show that participants were more likely to believe the alibi when it was provided by an in-group suspect than by an out-group suspect, supporting intergroup bias in alibi credibility assessments. Practical and theoretical implications are discussed.