Police officers were compared with community members in terms of the speed and accuracy with which they made simulated decisions to shoot (or not shoot) Black and White targets. Both samples exhibited robust racial bias in response speed. Officers outperformed community members on a number of measures, including overall speed and accuracy. Moreover, although community respondents set the decision criterion lower for Black targets than for White targets (indicating bias), police officers did not. The authors suggest that training may not affect the speed with which stereotype-incongruent targets are processed but that it does affect the ultimate decision (particularly the placement of the decision criterion). Findings from a study in which a college sample received training support this conclusion.

Four studies were conducted to test the hypothesis that group-related physical features may directly activate related stereotypes, leading to more stereotypic inferences over and above those resulting from categorization. As predicted, targets with more Afrocentric features were judged as more likely to have traits stereotypic of African Americans. This effect was found with judgments of African Americans and of European Americans. Furthermore, the effect was not eliminated when a more sensitive measure of categorization processes (category accessibility) was used or when the judgement context made category distinctions salient. Of additional interest was the finding that category accessibility independently affected judgment, such that targets who could be more quickly categorized as group members were judged more stereotypically.

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We examined implicit race biases in the decision to shoot potentially hostile targets in a multiethnic context. Results of two studies showed that college-aged participants and police officers showed anti-Black racial bias in their response times: they were quicker to correctly shoot armed Black targets and to indicate "don't shoot" for unarmed Latino, Asian, and White targets. In addition, police officers showed racial biases in response times toward Latinos versus Asians or Whites, and surprisingly, toward Whites versus Asians. Results also showed that the accuracy of decisions to shoot was higher for Black and Latino targets than for White and Asian targets. Finally, the degree of bias shown by police officers toward Blacks was related to contact, attitudes, and stereotypes. Overestimation of community violent crime correlated with greater bias toward Latinos but less toward Whites. Implications for police training to ameliorate biases are discussed.As the country becomes increasingly diverse, attempts to address overt and subtle forms of prejudice and discrimination based on race and/or ethnicity take on a new importance. The U.S. Census Bureau (2008) projects that by 2050, racial and ethnic minorities combined will constitute 54% of the population, the numerical

Three studies examined how participants use race to disambiguate visual stimuli. Participants performed a first-person-shooter task in which Black and White targets appeared holding either a gun or an innocuous object (e.g., a wallet). In Study 1, diffusion analysis (Ratcliff, 1978) showed that participants rapidly acquired information about a gun when it appeared in the hands of a Black target, and about an innocuous object in the hands of a White target. For counterstereotypic pairings (armed Whites, unarmed Blacks), participants acquired information more slowly. In Study 2, eye tracking showed that participants relied on more ambiguous information (measured by visual angle from fovea) when responding to stereotypic targets; for counterstereotypic targets, they achieved greater clarity before responding. In Study 3, participants were briefly exposed to targets (limiting access to visual information) but had unlimited time to respond. In spite of their slow, deliberative responses, they showed racial bias. This pattern is inconsistent with control failure and suggests that stereotypes influenced identification of the object. All 3 studies show that race affects visual processing by supplementing objective information.