Social relations and presence of others predict bystander intervention: Evidence from violent incidents captured on CCTV

Are individuals willing to intervene in public violence? Half a century of research on the “bystander effect” suggests that the more bystanders present at an emergency, the less likely each of them is to provide help. However, recent meta-analytical evidence questions whether this effect generalizes to violent emergencies. Besides the number of bystanders present, an alternative line of research suggests that pre-existing social relations between bystanders and conflict participants are important for explaining whether bystanders provide help. The current paper offers a rare comparison of both factors—social relations and the number of bystanders present—as predictors of bystander intervention in real-life violent emergencies. We systematically observed the behavior of 764 bystanders across 81 violent incidents recorded by surveillance cameras in Copenhagen, Denmark. Bystanders were sampled with a case–control design, their behavior was observed and coded, and the probability of intervention was estimated with multilevel regression analyses. The results confirm our predicted association between social relations and intervention. However, rather than the expected reversed bystander effect, we found a classical bystander effect, as bystanders were less likely to intervene with increasing bystander presence. The effect of social relations on intervention was larger in magnitude than the effect of the number of bystanders. We assess these findings in light of recent discussions about the influence of group size and social relations in human helping. Further, we discuss the utility of video data for the assessment of real-life bystander behavior.     

Church‐Based Social Relationships and Change in Self‐Esteem Over Time

This study has two goals. The first goal is to see if church‐based social relationships are associated with change in self‐esteem. Emotional support from fellow church members and having a close personal relationship with God serve as measures of church‐based social ties. The second goal is to see whether emotional support from fellow church members is more strongly associated with self‐esteem than emotional support from secular social network members. The data come from an ongoing nationwide survey of older adults. The findings reveal that having a close personal relationship with God is associated with a stronger sense of self‐esteem at the baseline and follow‐up interviews. In contrast, emotional support from fellow church members was not associated with self‐esteem at either point in time. However, emotional support from secular social network members is related to self‐esteem at the baseline but not the follow‐up interview.     

Inter‐category versus intra‐category fit: when social categories match social context

The goal of the research reported in this article was to examine whether social categorization, commonly thought to be a function of accessibility and intra‐category fit, is also sensitive to changes in inter‐category fit. Intra‐category fit refers to the match between a target person's features and stored categorical knowledge, inter‐category fit to the extent to which category memberships and targets' features covary across perceived group members. In Experiments 1, 2, and 3, members of social categories of low, medium, and high accessibility, respectively, were shown in a group discussion. Inter‐category fit was manipulated in three steps. Category salience in memory increased as an additive function of accessibility and inter‐category fit. Experiment 4 replicated the effects of inter‐category fit while intra‐category fit and the information presented for individual discussants were held constant. The present studies are the first to demonstrate an effect of inter‐category fit on a relatively direct measure of spontaneous social categorization. Copyright © 2004 John Wiley & Sons, Ltd.     

Uncovering the diverse cultural bases of social identity: Ingroup ties predict self‐stereotyping among individualists but not among collectivists

On what basis do people form their social identities? To investigate this issue, the present research investigates cross‐cultural differences in self‐stereotyping, a key outcome of social identification. In particular, the research tests the hypothesis that ingroup ties are a stronger predictor of self‐stereotyping among people from individualist cultures than among people from collectivist cultures. In Study 1, university students (N = 117) completed measures of ingroup ties and self‐stereotyping with respect to an intimacy group (family and friends). Consistent with predictions, ingroup ties significantly predicted self‐stereotyping among individualists but not among collectivists. Study 2 (N = 104) found a similar pattern of results among members of the global internet community who considered either an intimacy group (their friends), a task group (their work group) or a social category (their gender). These results indicate that people in individualist cultures are more likely than those in collectivist cultures to base their social identities on ingroup ties. The implications of these results are discussed in relation to self‐categorization theory's depersonalization account of social identification.     

Social Categorization in Intergroup Contexts: Three Kinds of Self‐Categorization

In reviewing self‐categorization theory and the literature upon which it is based, we conclude that individuals' attempts to form social categories could lead to three kinds of self‐categorization. We label them intergroup categorization, ingroup categorization, and outgroup categorization. We review literature supporting these three types and argue that they can help to explain and organize the existing evidence. Moreover, we conclude that distinguishing these three kinds of self‐categorization lead to novel predictions regarding social identity, social cognition, and groups. We offer some of those predictions by discussing their potential causes (building from optimal distinctiveness and security seeking literatures) and implications (on topics including prototype complexity, self‐stereotyping, stereotype formation, intergroup behavior, dual identity, conformity, and the psychological implications of perceiving uncategorized collections of people). This paper offers a platform from which to build theoretical and empirical advances in social identity, social cognition, and intergroup relations.     

Understanding Anti‐Arab Reactions Post‐9/11: The Role of Threats,Social Categories,and Personal Ideologies1

This study examined social psychological processes associated with anti‐Arab reactions (prejudice, stereotypes, and discrimination) following the September 11 terrorist attacks. Participants (N= 201) responded to an online survey. Perceived threats, self‐categorization, social dominance orientation, and just‐world beliefs were tested for their effectiveness in predicting anti‐Arab reactions. The results reveal that self‐categorization and social dominance orientation each individually accounted for a substantial percentage of the variance, while perceived threats accounted for a relatively small amount of the variance in anti‐Arab responses. However, an integrated model demonstrated that social dominance orientation, threats, self‐categorization, and a threat by self‐categorization interaction provided the best prediction of anti‐Arab reactions. Results are discussed in terms of the theoretical and practical applications for understanding out‐group derogation following political‐cultural world events.     

Social Categorization and Stereotyping: How Social Categorization Biases Person Perception and Face Memory

The current article offers a brief history of research and theory related to social categorization and stereotyping. We begin by outlining research focusing on category selection, category activation, and category application. We then discuss the consequences of social categorization, noting that one of the most important and ubiquitous effects of social categorization is homogenization or assimilation. We then extend this research related to the assimilative consequences of social categorization to the realm of face memory. Specifically, we introduce the Categorization‐Individuation Model (see also Hugenberg et al., forthcoming) as a new model of the Cross‐Race Effect, or the difficulty many perceivers have in recognizing members of other racial groups. The Categorization‐Individuation Model argues that the Cross‐Race Effect is due to the tendency to categorize out‐group members but individuate in‐group members. Finally, we summarize the extant research in support of this new model of person memory and close by discussing the current state of, and potential future directions for, social categorization research.     

Profiles of bystanders' motivation to defend school bully victims from a self‐determination perspective

This study was aimed at exploring which latent profiles emerge based on ratings of self‐determined motivation to defend victims of bullying, and to explore if they are related to bystander roles and victimization in bullying, as well as student–teacher relations. Data were collected from 1,800 Swedish and Italian students, with an age range between 10 and 18 years (M = 12.6, standard deviation = 1.74). The students completed a survey in their classrooms. Latent profile analysis was used to explore the possible clusters of individuals with similar ratings on the motivational variables. Multivariate analysis of variances were conducted to explore differences between the profiles in relation to their roles when witnessing bullying and to student–teacher relationships. Four latent profiles emerged. The profiles represented respondents (a) high in prosocial motivation, (b) high in externally extrinsic motivation, (c) intermediate in externally extrinsic motivation, and (d) with identified/introjected motivation. Multivariate analyses showed that reports of bystander roles when witnessing bullying, teacher–student relationships, and bullying victimization, significantly differed over the motivational profiles. The bystanders were unevenly distributed across the four groups and most individuals were categorized in the prosocial motivation group. Female and male bystanders were evenly distributed across clusters. The prosocial motivation group experienced victimization to a lesser extent than the other profile groups. Students in the intermediate externally extrinsic group were more likely to take the pro‐bully and outsider role during bullying. Concerning student–teacher relationships, the prosocial motivation group reported the closest relationships with their teachers, while the intermediate externally extrinsic group reported the most conflictual relationships.     

Social Identity Theory and Self‐categorization Theory: A Historical Review

The social identity approach (comprising social identity theory and self‐categorization theory) is a highly influential theory of group processes and intergroup relations, having redefined how we think about numerous group‐mediated phenomena. Since its emergence in the early 1970s, the social identity approach has been elaborated, re‐interpreted, and occasionally misinterpreted. The goal of this paper is to provide a critical, historical review of how thinking and research within the social identity approach has evolved. The core principles of the theories are reviewed and discussed, and their effect on the field assessed. Strengths and limitations of the approach are discussed, with an eye to future developments.     

Chameleonic social identities: Context induces shifts in homosexuals' self‐stereotyping and self‐categorization

Do people align their self‐concepts to the environment? It was predicted that low‐status (homosexuals), but not high‐status group members (heterosexuals), respond to environmental cues by shifting the type of self‐categorization and self‐stereotyping. In the presence (vs. absence) of environmental cues to sexual orientation, homosexual individuals felt more talented for typically homosexual jobs and showed greater self‐stereotyping on typically homosexual traits (Experiment 1). Using implicit measures of self‐categorization and self‐stereotyping, we observed parallel findings for homosexuals, but not for heterosexuals (Experiment 2). Results are discussed in relation to research on stigma, with particular attention to the potential benefits for low‐status group members of changing their implicit self‐concept flexibly across situations. Copyright © 2013 John Wiley & Sons, Ltd.     

Intergroup Emotions and Intergroup Relations

Intergroup emotions theory seeks to understand and improve intergroup relations by focusing on the emotions engendered by belonging to, and by deriving identity from, a social group (processes called self‐categorization and identification). Intergroup emotions are shaped by the very different ways in which members of different groups see group‐relevant objects and events. These emotions come, with time and repetition, to be part and parcel of group membership itself. Once evoked, specific intergroup emotions direct and regulate specific intergroup behaviors. This approach has implications for theories of emotion as well as of intergroup relations. Because intergroup emotions derive from self‐categorization and identification and because they strongly influence intergroup behavior, intergroup emotions theory provides an innovative framework for attempts to reduce prejudice and improve intergroup relations.     

Moderators of Social Power Use for In‐Group/Out‐Group Targets: An Experimental Paradigm1

Studies of social power use have frequently employed self‐report instruments that are prone to response bias. In the present study, an experimental design was conducted in which 100 participants were asked to gain compliance from in‐group and out‐group members. We tested whether harsh tactics—often used for elevating self‐image at the dyadic level—also provide a means for gaining advantage at the group level. For this purpose, self‐esteem and self‐efficacy were examined as possible moderators. Findings indicated that self‐esteem interacted with target group: Low self‐esteem participants used harsh tactics more frequently toward in‐group than out‐group members; and moderate and high self‐esteem participants used harsh tactics more frequently toward out‐group than in‐group members. The process involved in this interaction is discussed.     

Group socialization and prejudice: the social transmission of intergroup attitudes and beliefs

In order to examine the social transmission of prejudice in the military, attitudes and beliefs of Francophone (minority) and Anglophone (majority) prospective military officers toward their own and other groups were assessed at the beginning and at the end of a four‐year officer‐training program. Consistent with social dominance theory and system justification theory, majority group members become significantly more negative toward outgroups (e.g. Francophones, civilians and immigrants) and more likely to internalize beliefs that legitimize the economic gap between Francophones and Anglophones in Canada. Moreover, as predicted on the basis of self‐categorization theory, the results show that identification with the category ‘Canadian Forces Officers’ assessed at the midpoint in the program, moderates the change in intergroup attitudes and beliefs. Finally, minority group members did not internalize negative stereotypes of their own group. These results provide important evidence for the role of group socialization in the explanation of intergroup attitudes and beliefs and suggest that social identification is a key factor in group socialization, consistent with self‐categorization theory. Copyright © 2000 John Wiley & Sons, Ltd.     

Categorizing at the group‐level in response to intragroup social comparisons: a self‐categorization theory integration of self‐evaluation and social identity motives

Two experiments examined how people respond to upward social comparisons in terms of the extent to which they categorize the self and the source of comparison within the same social group. Self‐evaluation maintenance theory (SEM) suggests that upward ingroup comparisons can lead to the rejection of a shared categorization, because shared categorization makes the comparison more meaningful and threatening. In contrast, social identity theory (SIT) suggests that upward ingroup comparisons can lead to the acceptance of shared categorization because a high‐performing ingroup member enhances the ingroup identity. We attempted to resolve these differing predictions using self‐categorization theory, arguing that SEM applies to contexts that make salient one's personal identity, and SIT applies to contexts that make collective identity salient. Consistent with this perspective, the level of identity activated in context moderated the effect of an upward ingroup comparison on the acceptance of shared social categorization. Copyright © 2006 John Wiley & Sons, Ltd.     

Identity and emergency intervention: how social group membership and inclusiveness of group boundaries shape helping behavior

Two experiments exploring the effects of social category membership on real-life helping behavior are reported. In Study 1, intergroup rivalries between soccer fans are used to examine the role of identity in emergency helping. An injured stranger wearing an in-group team shirt is more likely to be helped than when wearing a rival team shirt or an unbranded sports shirt. In Study 2, a more inclusive social categorization is made salient for potential helpers. Helping is extended to those who were previously identified as out-group members but not to those who do not display signs of group membership. Taken together, the studies show the importance of both shared identity between bystander and victim and the inclusiveness of salient identity for increasing the likelihood of emergency intervention.     

Decategorization and the reduction of bias in the crossed categorization paradigm

Within the crossed categorization paradigm we examined the consequences of cooperative and personalized contact under conditions that promoted attention to unique attributes of team members (decategorization) versus conditions that emphasized their category memberships. As predicted, when the rule for composing teams emphasized one or both of the experimentally induced dimensions of category distinction, ethnocentric bias generalized to members of another team as a function of category similarity. When, instead, the rule emphasized team members' unique attributes, shared in‐group memberships no longer moderated bias towards members of another team. Instead, there was an equivalence pattern in the evaluative ratings of the four targets (in‐group/in‐group; in‐group/out‐group; out‐group/in‐group; out‐group/out‐group) of the crossed categorization paradigm. Copyright © 2001 John Wiley & Sons, Ltd.     

Modifying perceived variability: four laboratory and field experiments show the effectiveness of a ready‐to‐be‐used prejudice intervention

We examined whether increasing individuals' perceived variability of an out‐group reduces prejudice and discrimination toward members of this group. In a series of four laboratory and field experiments, we attracted participants' attention to the heterogeneity of members of an out‐group (or not), and then measured their attitudes or behaviors. Perceived variability was manipulated by portraying the out‐group members as having diverse socio‐demographic characteristics and different personality traits and preferences. Prejudice and discrimination were measured in terms of self‐reported prejudice, stereotyping, in‐group bias, social distance, and willingness to do something for the minority group under consideration. In all experiments, perceived variability decreased prejudice and discrimination.     

Relevance of social categories,depersonalization and group processes: two field tests of self‐categorization theory

Two field studies investigated whether, as predicted by self‐categorization theory (Turner, 1987 ), the relationship between comparative fit of an ingroup‐outgroup categorization and group phenomena is mediated by depersonalization of self‐perception, and moderated by category accessibility. In the first study participants were football fans, and in the second they were employees in an organization. In each study, two experimental conditions were created, whereby the accessibility and salience of the ingroup‐outgroup categorization were varied. New measures of comparative fit and depersonalization were developed, based on meta‐contrast ratios. Outcome variables were ingroup bias (Studies 1 and 2), ingroup entitativity, organizational citizenship behaviours, job satisfaction and turnover intentions (Study 2). Consistent with self‐categorization theory, results showed (a) that comparative fit determined ingroup bias and other criterion variables through the mediating process of depersonalization, and (b) that this process was active only when the category was highly accessible. The moderational role of accessibility concerned the relationship between depersonalization and outcome variables, not the link between fit and depersonalization. Copyright © 2006 John Wiley & Sons, Ltd.     

The impact of onlooking and including bystander behaviour on judgments and emotions regarding peer exclusion

We investigated judgments and emotions in contexts of social exclusion that varied as a function of bystander behaviour (N = 173, 12‐ and 16‐year‐olds). Adolescents responded to film vignettes depicting a target excluded by a group with no bystanders, onlooking bystanders, or bystanders who included the target. Adolescents were asked to judge the behaviour and attribute emotions to the excluding group, the excluded target, and the bystanders. Younger adolescents judged the behaviour of the excluding group as more wrong than older adolescents when there were no bystanders present, indicating that the presence of bystanders was viewed as lessening the negative outcome of exclusion by the younger group. Yet, bystanders play a positive role only when they are includers, not when they are silent observers. This distinction was revealed by the findings that adolescents rated the behaviour of onlooking bystanders as more wrong compared with the behaviour of including bystanders. Moreover, all adolescents justified the inclusive behaviour more frequently with empathy than the onlooking behaviour. Adolescents also anticipated more empathy to including bystanders than to onlooking bystanders, as well as anticipated more guilt to onlooking bystanders than including bystanders. The findings are discussed in light of the role of group norms and group processes regarding bystanders' roles in social exclusion peer encounters.