The police officer's dilemma: Using ethnicity to disambiguate potentially threatening individuals.

Using a simple videogame, the effect of ethnicity on shoot/don't shoot decisions was examined. African American or White targets, holding guns or other objects, appeared in complex backgrounds. Participants were told to "shoot" armed targets and to "not shoot" unarmed targets. In Study 1, participants made the correct decision to shoot an armed target more quickly if the target was African American than if he was White, but decided to "not shoot" an unarmed target more quickly if he was White. Study 2 used a shorter time window, forcing this effect into error rates. Study 3 replicated Study 1's effects and showed that the magnitude of bias varied with perceptions of the cultural stereotype of African Americans as dangerous, and with levels of contact. Study 4 revealed equivalent levels of bias among White and African American participants in a community sample. Implications and potential underlying mechanisms are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Self-protective biases in group categorization: Threat cues shape the psychological boundary between “us” and “them”.

Across 6 studies, factors signaling potential vulnerability to harm produced a bias toward outgroup categorization—a tendency to categorize unfamiliar others as members of an outgroup rather than as members of one's ingroup. Studies 1 through 4 demonstrated that White participants were more likely to categorize targets as Black (as opposed to White) when those targets displayed cues heuristically associated with threat (masculinity, movement toward the perceiver, and facial expressions of anger). In Study 5, White participants who felt chronically vulnerable to interpersonal threats responded to a fear manipulation by categorizing threatening (angry) faces as Black rather than White. Study 6 extended these findings to a minimal group paradigm, in which participants who felt chronically vulnerable to interpersonal threats categorized threatening (masculine) targets as outgroup members. Together, findings indicate that ecologically relevant threat cues within both the target and the perceiver interact to bias the way people initially parse the social world into ingroup vs. outgroup. Findings support a threat-based framework for intergroup psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Racing to help: Racial bias in high emergency helping situations.

The present work explored the influence of emergency severity on racial bias in helping behavior. Three studies placed participants in staged emergencies and measured differences in the speed and quantity of help offered to Black and White victims. Consistent with predictions, as the level of emergency increased, the speed and quality of help White participants offered to Black victims relative to White victims decreased. In line with the authors' predictions based on an integration of aversive racism theory and the arousal: cost-reward perspective on prosocial behavior, severe emergencies with Black victims elicited high levels of aversion from White helpers, and these high levels of aversion were directly related to the slower help offered to Black victims but not to White victims (Study 1). In addition, the bias was related to White individuals' interpretation of the emergency as less severe and themselves as less responsible to help Black victims rather than White victims (Studies 2 and 3). Study 3 also illustrated that emergency racial bias is unique to White individuals' responses to Black victims and not evinced by Black helpers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of rater race on conclusions regarding differential prediction in cognitive ability tests.

The possibility of predictive bias by race in employment tests is commonly examined by across-group comparisons of the slopes and intercepts of regression lines using test scores to predict performance measures. This research assumed that the criteria, primarily supervisory ratings, were unbiased. However, a concern is that the apparent lack of differential prediction in cognitive ability tests may be an artifact of the predominant use of performance ratings provided by supervisors who are members of the majority group; a criterion that is potentially biased against members of the minority group. We posited that ratings by a supervisor of the same race as the employee being rated would be less open to claims of bias. We compared ability-performance relationships in samples of Black and White employees that allowed for between-subjects and within-subjects comparisons under 2 conditions: when all employees were rated by a White supervisor and when each employee was rated by a supervisor of the same race. Neither analysis found evidence of predictive bias against Black employees. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Implicit and explicit prejudice and interracial interaction.

The present research examined how implicit racial associations and explicit racial attitudes of Whites relate to behaviors and impressions in interracial interactions. Specifically, the authors examined how response latency and self-report measures predicted bias and perceptions of bias in verbal and nonverbal behavior exhibited by Whites while they interacted with a Black partner. As predicted, Whites' self-reported racial attitudes significantly predicted bias in their verbal behavior to Black relative to White confederates. Furthermore, these explicit attitudes predicted how much friendlier Whites felt that they behaved toward White than Black partners. In contrast, the response latency measure significantly predicted Whites' nonverbal friendliness and the extent to which the confederates and observers perceived bias in the participants' friendliness. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Repetition blindness has a perceptual locus: Evidence from online processing of targets in RSVP streams.

Four experiments tested whether repetition blindness (RB; reduced accuracy reporting repetitions of briefly displayed items) is a perceptual or a memory-recall phenomenon. RB was measured in rapid serial visual presentation (RSVP) streams, with the task altered to reduce memory demands. In Experiment 1 only the number of targets (1 vs. 2) was reported, eliminating the need to remember target identities. Experiment 2 segregated repeated and nonrepeated targets into separate blocks to reduce bias against repeated targets. Experiments 3 and 4 required immediate "online" buttonpress responses to targets as they occurred. All 4 experiments showed very strong RB. Furthermore, the online response data showed clearly that the 2nd of the repeated targets is the one missed. The present results show that in the RSVP paradigm, RB occurs online during initial stimulus encoding and decision making. The authors argue that RB is indeed a perceptual phenomenon. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Psychology, public policy, and the evidence for alcohol intoxication.

Discusses the legal requirement that alcoholic beverage purveyors not serve apparently intoxicated persons in terms of the ability of nonmedical observers to detect intoxication. Three experiments tested the ability of 49 members of a university community (aged 18–25 yrs), 12 bartenders (aged 21–39 yrs), and 30 police officers (aged 23–50 yrs) to identify sober, moderately intoxicated, and legally drunk targets after observing them for several minutes. All of the S groups correctly rated the targets' level of intoxication less than 25% of the time, and the accuracy of ratings deteriorated as the targets' level of intoxication increased. Police officers performed somewhat better in an arrest analog than in a laboratory condition, and a subgroup of 5 officers showed a high level of accuracy. Findings indicate that the detection of intoxication requires special skill and that the standard of judgment legally required of bartenders is unreasonable. (6 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Judgments of relative motion in tactical displays.

Two experiments examined the speed with which the direction of relative motion could be inferred from static tactical displays. In Exp I, 12 25–40 yr old experienced right-handed male naval officers responded more rapidly to displays depicting target motion to the right than to the left, but 12 inexperienced officers did not. For both groups, 1 of the 3 tactical geometries yielded significantly longer response times than the others (a "tactic" effect). In Exp II, the influence of decision strategy on the tactic effect was evaluated in 18 22–52 yr old naive Ss. Control of strategy through instruction and order of problem presentation did not reduce the tactic effect but did interact with the directional bias related to target motion. The tactic effect is discussed in terms of directional incongruity among displayed and inferred stimulus elements. Implications for training are discussed. (27 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Prejudice and perception: The role of automatic and controlled processes in misperceiving a weapon.

Two experiments used a priming paradigm to investigate the influence of racial cues on the perceptual identification of weapons. In Experiment 1, participants identified guns faster when primed with Black faces compared with White faces. In Experiment 2, participants were required to respond quickly, causing the racial bias to shift from reaction time to accuracy. Participants misidentified tools as guns more often when primed with a Black face than with a White face. L. L. Jacoby's (1991) process dissociation procedure was applied to demonstrate that racial primes influenced automatic (A) processing, but not controlled (C) processing. The response deadline reduced the C estimate but not the A estimate. The motivation to control prejudice moderated the relationship between explicit prejudice and automatic bias. Implications are discussed on applied and theoretical levels. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Accuracy of eyewitness identification in a field setting.

64 White and 9 Black 17–60 yr old clerks working alone in convenience stores were asked by "law interns" to identify from photograph lineups (prepared by the local police department) 2 male customers, one Black and one White, who had been in their store 2 hrs earlier. Ss were able to make correct identifications about one-third of the time. Even when no-guesses were omitted, identifications were correct less than half (46.8%) of the time. There was a substantial relationship between accuracy and Ss' confidence that they were correct. Only slight evidence of an own-race bias in accuracy was found among the Whites. White Ss' ability to identify the Black customer was significantly related to the amount of self-reported cross-racial experiences. The attractiveness and distinctiveness of the customers was related to the frequency of correct identifications, as was the effective size and functional size of the lineups used. Black Ss showed better overall recognition accuracy than did White Ss. (29 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Compositions in Black and White: Determinants of interaction in interracial dyads.

Examined the initial, unstructured interactions of 40 interracial (Black–White) dyads in which 3 factors were systematically varied. These factors were the disposition of the White dyad members to either seek out or shun interaction with Blacks, the race (Black vs White) of the experimenter, and the gender composition (male–male vs female–female) of the dyads. Results show that within dyads, White dyad members displayed more interactional involvement than their Black partners but experienced the interactions as more stressful and uncomfortable. Whites predisposed to avoid interaction with Blacks looked and smiled at their partners less than those predisposed to initiate interaction. Both Black and White members of these avoidance dyads reported heightened feelings of anxiety and concern about their interactions, but the moderating influences of the Whites' approach–avoidance dispositions on interaction behavior were essentially limited to conditions in which the experimenter was Black and the White S was a "solo minority." It is suggested that Black–White partner effects are attributable to differing amounts of cross-race contact typically experienced by Blacks and Whites. Black–White experimenter effects are interpreted in terms of S. E. Taylor's (1981) hypothesis that stereotypes and related dispositions are activated in social contexts in which group membership is made salient. (38 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

High or low target prevalence increases the dual-target cost in visual search.

Previous studies have demonstrated a dual-target cost in visual search. In the current study, the relationship between search for one and search for two targets was investigated to examine the effects of target prevalence and practice. Color-shape conjunction stimuli were used with response time, accuracy and signal detection measures. Performance was lower in dual-target search compared with the combined performance for two independent single-target searches. The cost in response time slope disappeared with practice, but the cost in accuracy remained. Sensitivity was lower and the decision criterion more conservative in dual-target search than in single-target searches, suggesting that the representation of the target was less effective in dual-target search than in single-target search. Manipulation of target prevalence induced a bias in favor of the more likely correct response: target-present responses were likely under high target prevalence and target-absent responses were likely under low target prevalence. The prevalence effect was greater in dual-target search than single-target search, causing the dual-target cost to be larger under target prevalences that differed from 50%. These findings are important for applied tasks in which targets appear rarely and can differ from each other. For example, the low target prevalence in X-ray security searches may magnify the dual-target cost implicated in previous research with X-ray images (see Menneer, Cave, & Donnelly, 2009). Such a result would increase the need for security personnel to consider alternatives to dual-target search, such as specialization in detecting one target type or training to encourage independent searches for each target. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of race on ratings of social skill.

Black and White judges rated the behavior of 12 schizophrenics participating in a comprehensive social skills training program. Results indicate that Black and White judges rated the same behavior in a different manner and are discussed in terms of how such practices could affect outcome in social skills research. (7 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Remembering race: White racial identity attitudes and two aspects of social memory.

This study investigated whether the White racial identity statuses proposed by J. E. Helms (1984, 1990, 1995) could explain individual differences in how racial stereotypes influence memory for race-related information as measured by memory sensitivity and response bias on a recognition memory task. Participants were 197 White undergraduate and graduate students who read 3 stimulus paragraphs embedded with Black and White stereotypical items. The race of the target character in the stimulus was randomly reported to be Black or White. After a 1-week interval, participants completed a measure of recognition memory, as well as a measure of White racial identity attitudes. Results offer support for the hypothesis that the White racial identity statuses influence how racial stereotypes affect information processing. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Evidence for hypodescent and racial hierarchy in the categorization and perception of biracial individuals.

Individuals who qualify equally for membership in two racial groups provide a rare window into social categorization and perception. In 5 experiments, we tested the extent to which a rule of hypodescent, whereby biracial individuals are assigned the status of their socially subordinate parent group, would govern perceptions of Asian–White and Black–White targets. In Experiment 1, in spite of posing explicit questions concerning Asian–White and Black–White targets, hypodescent was observed in both cases and more strongly in Black–White social categorization. Experiments 2A and 2B used a speeded response task and again revealed evidence of hypodescent in both cases, as well as a stronger effect in the Black–White target condition. In Experiments 3A and 3B, social perception was studied with a face-morphing task. Participants required a face to be lower in proportion minority to be perceived as minority than in proportion White to be perceived as White. Again, the threshold for being perceived as White was higher for Black–White than for Asian–White targets. An independent categorization task in Experiment 3B further confirmed the rule of hypodescent and variation in it that reflected the current racial hierarchy in the United States. These results documenting biases in the social categorization and perception of biracials have implications for resistance to change in the American racial hierarchy. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Unobtrusive measurement of racial bias in job-placement decisions.

Unobtrusively gathered historical data documenting recruit-classification decisions made by the US Navy were utilized to determine whether racial bias exists among classifiers. The nature of the classification procedure resulted in the essentially random assignment of over 27,000 Black and White recruits to 46 Black and White classifiers. This permitted a number of interesting comparisons and obviated numerous problems inherent in racial-bias studies. The major hypothesis that Black and White classifiers would be differentially biased in their treatment of Black and White recruits was not supported. A 2nd hypothesis that classifiers within either racial group would be differentially biased in their treatment of Black and White recruits also was not confirmed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Differentiation and response bias in episodic memory: Evidence from reaction time distributions.

In differentiation models, the processes of encoding and retrieval produce an increase in the distribution of memory strength for targets and a decrease in the distribution of memory strength for foils as the amount of encoding increases. This produces an increase in the hit rate and decrease in the false-alarm rate for a strongly encoded compared with a weakly encoded list, consistent with empirical data. Other models assume that the foil distribution is unaffected by encoding manipulations or the foil distribution increases as a function of target strength. They account for the empirical data by adopting a stricter criterion for strongly encoded lists relative to weakly encoded lists. The differentiation and criterion shift explanations have been difficult to discriminate with accuracy measures alone. In this article, reaction time distributions and accuracy measures are collected in a list-strength paradigm and in a response bias paradigm in which the proportion of test items that are targets is manipulated. Diffusion model analyses showed that encoding strength is primarily accounted for by changes in the rate of accumulation of evidence (i.e., drift rate) for both targets and foils and manipulating the proportion of targets is primarily accounted for by changes in response bias (i.e., starting point). The diffusion model analyses is interpreted in terms of predictions of the differentiation models in which subjective memory strength is mapped directly onto drift rate and criterion placement is mapped onto starting point. Criterion shift models require at least 2 types of shifts to account for these findings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of race on interview ratings in a situational panel interview.

This study investigated the effects of interviewer race, candidate race, and racial composition of interview panels on interview ratings. Data were collected on 153 police officers applying for promotion. Results confirmed a same-race rating effect (i.e., candidates racially similar to interviewers received higher ratings) for Black and White interviewers on racially balanced panels. A majority-race rating effect (i.e., candidates racially similar to the majority race of panel interviewers received higher ratings) existed for Black and White interviewers on primarily White panels. Rating patterns of Black and White interviewers on primarily Black panels also suggested a majority-race rating effect. Racial composition of selection interview panels in combination with interviewer and candidate race were proposed as variables affecting candidates' ratings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Power of the Brown v. Board of Education Decision: Theorizing Threats to Sustainability.

Interviews with African American and White American elders capture the immediate power of the Brown v. Board of Education (1954) decision and the biography of its impact over time. This article reviews the lived experience of the decision and theorizes 3 threats to sustainability that ruthlessly undermined the decision over time: (a) the unacknowledged and enormous sacrifice endured by the African American community in the name of desegregation; b) the violent and relentless resistance to the decision by government officials, educators, and many White community members; and (c) the dramatic shrinkage of the vision of Brown from the dismantling of White supremacy to a technical matter of busing. Implications are drawn for the study of desegregation and for the study of sustainability of social justice more broadly. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A field study of own-race bias in South Africa and England.

In shopping centers in South Africa and England, Black and White people were approached by either a Black or a White confederate. Later they were asked to identify the confederate from both a sequential lineup, where photographs are seen one at a time, and a forced-choice recognition test, where photographs are seen simultaneously. In both countries and with both identification tasks the confederates were better recognized by people of their own race. By observing this own-race bias in two countries with different demographics, using methods similar to those used in some criminal investigations of eyewitness memory, the authors demonstrated the robust nature of the own-race bias. In addition, witness confidence and accuracy were found to be correlated but only when the participant was the same race as the confederate. Implications for legal procedure are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)