Prejudice Implicit Association Test Effects
Self-concept is accessible information that can be used when facing a demanding task. Based on findings suggesting that effects observed in Implicit Association Tests (IATs) could be partially explained by the procedural features of the task, we investigated the role of participants’ self-inclusion in target categories for group IATs. We propose that IAT constraints lead participants to use self-relevant heuristics related to their membership of target categories in order to respond rapidly, which contributes to IAT group preferences. Thus positive IAT effects should dramatically diminish if participants were induced not to use self-related heuristics. Study 1 showed that when mapping outgroup names and idiosyncratic characteristics of participants onto the same category during the IAT task, the IAT effect no longer occurs. Study 2 replicated these findings when associating outgroup-participants’ idiosyncratic characteristics prior to the completion of the standard IAT. Therefore inhibiting the use of self-related heuristics reduces IAT effects. The implications of our results for the construct validity of prejudice IATs are discussed.