The divisive potential of differences and similarities: The role of intergroup distinctiveness in intergroup differentiation

In this article we examine the relationship between perceptions of intergroup distinctiveness and intergroup differentiation. Research in this area has highlighted two contrasting hypotheses: high distinctiveness is predicted to lead to increased intergroup differentiation (self-categorisation theory), while low distinctiveness or too much similarity can also underlie positive differentiation (social identity theory). We argue for a theoretical integration of these predictions and outline their domains of applicability. In addition to empirical studies from our own laboratory, support for these hypotheses in the literature is examined meta-analytically, and we assess the power of a number of moderators of the distinctiveness ‐ differentiation relation. We focus on group identification and salience of the superordinate category as the most powerful moderators of this relation. We report evidence that low group distinctiveness leads to more differentiation for high identifiers, while high group distinctiveness leads to more differentiation for low identifiers. In addition, our meta-analysis revealed that when the superordinate category was not salient, low distinctiveness tended to lead to differentiation (albeit not significantly so) while high distinctiveness led to differentiation when the salience of the superordinate category was high. A model is proposed integrating our predictions concerning moderators of the distinctiveness ‐ differentiation relation. Theoretical implications of these findings are discussed and we suggest directions for future research.     

Intergroup distinctiveness and differentiation: a meta-analytic integration

The authors examined the relation between perceptions of intergroup distinctiveness and intergroup differentiation in a meta-analysis. They tested the social identity theory prediction that low intergroup distinctiveness underlies differentiation (the "reactive distinctiveness" hypothesis) for effects on behavioral and judgmental differentiation. In addition, they examined the moderating power of 4 variables that H. Tajfel and J. C. Turner (1979) predicted would influence differentiation (group identification, relevance of the dimension of comparison, relevance of the outgroup. and nature of intergroup relations). Analysis of 60 tests revealed that the overall effect of distinctiveness on differentiation was not significantly different from 0, but reactive distinctiveness was found on behavioral differentiation measures, whereas reflective distinctiveness was found on judgmental differentiation measures. Only group identification was a reliable moderator. High identifiers showed reactive distinctiveness, whereas low identifiers showed reflective distinctiveness.     

Intergroup Distinctiveness and Discriminatory Immigration Attitudes: The Role of National Identification

We examined the moderating role of national identification in understanding when a focus on intergroup similarity versus difference on ingroup stereotypical traits—manipulated with scale anchors—leads to support for discriminatory immigration policies. In line with intergroup distinctiveness research, national identification moderated the similarity–difference manipulation effect. Low national identifiers supported discriminatory immigration policies more when intergroup difference rather than similarity was made salient, whereas the opposite pattern was found for high national identifiers: They trended toward being more discriminatory when similarity was made salient. The impact of assimilation expectations and national identity content on the findings is discussed.     

Distinctiveness threat and prototypicality: combined effects on intergroup discrimination and collective self-esteem

The combined influence on ingroup bias of threat to group distinctiveness and prototypicality as a group member was examined in two studies. It was predicted, in line with social identity theory, that threat to group distinctiveness would lead to more ingroup bias. In addition, on the basis of self-categorization theory it was predicted that protypical and peripheral group members would react differently to a threat to their group distinctiveness. Only group members who define themselves as prototypical group members should be motivated to defend their threatened distinctiveness by engaging in increased ingroup bias. This hypothesis was first supported in a modified minimal group setting in which threat was operationalized as overlapping group boundaries. These results were then replicated in a second study, using better-established groups, for whom distinctiveness threat was manipulated in terms of intergroup similarity. Moreover, some support was found in Study 2 for the prediction that the opportunity to engage in intergroup differentiation can, under restricted conditions, enhance group-related self-esteem. © 1997 John Wiley & Sons, Ltd     

When differences matter: intergroup distinctiveness and the evaluation of impostors

The present study examined the effect of intergroup distinctiveness and group membership on evaluations of impostors. We predicted that ingroup members would be harsher than outgroup members on an impostor and that perceptions of intergroup distinctiveness would further moderate these evaluations. Specifically, we tested the social identity theory prediction that low intergroup distinctiveness would lead to greater derogation of the impostor (the ‘reactive distinctiveness’ hypothesis) against the self‐categorization hypothesis that high intergroup distinctiveness would instigate more derogation of an impostor (the ‘reflective distinctiveness’ hypothesis). In this study, vegetarians (ingroup members) and meat eaters (outgroup members) were presented with a target claiming to be vegetarian, but caught indulging in a meat dish. We found that ingroup members derogated the impostor more and felt less pleased about discovering the impostor behaviour than did outgroup members. In line with the reflective distinctiveness hypothesis, the heightened derogation displayed by ingroup members only emerged when intergroup distinctiveness was high, an effect that was mediated by ratings of group identification. The discussion focuses on the different responses intergroup distinctiveness may evoke. Copyright © 2005 John Wiley & Sons, Ltd.     

On being more than just a part of the whole: Regional identity and social distinctiveness

This article reports the results of a questionnaire study that examined the relationship between regional identification and perceptual accentuation of ingroup distinctiveness in a natural field setting. Respondents were male inhabitants of the Saarland which is a small German state. Half the respondents were members of the leading political party of the Saarland, while the other respondents were members of the major opposition party. As expected, the former showed more pronounced regional identification than the latter. Our main prediction was that a higher level of regional identification would be accompanied by stronger accentuation of positive distinctiveness of the regional ingroup relative to the national ingroup. The prediction was confirmed, both in terms of intergroup differentiation and perceived group homogeneity. Additional results suggest that, depending on the level of social identification, perceived group homogeneity may be either positively or negatively related to familiarity with the ingroup. Finally, we discuss the applicability of social identity theory to social contexts comprising differentially inclusive ingroups instead of mutually exclusive ingroups and outgroups.     

Strength of identification and intergroup differentiation: the influence of group norms

The present study aimed at showing that the relationship between identification and ingroup bias is moderated by salient group norms that prescribe or proscribe differentiation in an intergroup context. A study (N=191) in which level of identification and group norms were manipulated showed that high identifiers acted more in accordance with a salient differentiation norm compared to low identifiers. When a fairness norm was made salient, however, the expected difference was not obtained. The results are discussed in the context of the inconsistent relationships between ingroup bias and identification found in previous research. ©1997 John Wiley & Sons, Ltd.     

Minority report: Social identity,cognitions of rejection and intergroup anxiety predicting prejudice from one racially marginalized group towards another

The present study investigated the attitudes of one disadvantaged minority group in Australia, Asian Australians (N = 87), towards another more severely disadvantaged minority group, Aboriginal Australians. Asian Australian attitudes were compared to European Australian attitudes (N = 273). Cognitions of outgroup rejection, identification and intergroup anxiety were assessed in relation modern racism, desire for intergroup avoidance and support for a national apology. Both Asian and European participants who perceived Aboriginal Australians as rejecting were more likely to express intergroup anxiety. Anxiety mediated the relationship between cognitions of rejection and the dependent variables. Whilst there was a direct positive relationship between European Australian identification and prejudice, for Asian Australian participants, identification moderated the relationship between cognitions of rejection and the dependent variables. Highly identified Asian Australian participants were particularly sensitive to cognitions of rejection, which increased modern racism and avoidance and lowered political support. The pattern was reversed for low identifiers, who were more likely to endorse a national apology to Aboriginal Australians when they perceived Aboriginal Australians as rejecting. The role of perceived rejection in predicting prejudice and avoidance, and the moderating role of Asian Australian identification, are both discussed. Copyright © 2009 John Wiley & Sons, Ltd.     

Striving for difference: On the spontaneous preference for ingroup members who maximize ingroup positive distinctiveness

Previous research demonstrated that individuals spontaneously prefer ingroup members who display ingroup favoritism rather than egalitarian behaviors (Castelli, Tomelleri, & Zogmaister, 2008). In the current work, we explored what specific strategies toward ingroup favoritism are spontaneously preferred. Results from four studies showed that ingroup members who made it possible for the ingroup to achieve a positive intergroup differentiation were preferred as compared to ingroup members who maximized the absolute gain for the ingroup. Study 5 further demonstrated that in the search for positive distinctiveness people are sensitive to the ratio between the gains of the ingroup and outgroup. Study 6 ruled out a possible alternative explanation. Overall, the current findings indicate that group members who set the difference from an outgroup elicit the most positive spontaneous responses demonstrating that the search for a positive intergroup distinctiveness automatically affects intragroup perception. Copyright © 2010 John Wiley & Sons, Ltd.     

The Influence of Social Consensus Information on Intergroup Attitudes: The Moderating Effects of Ingroup Identification

ABSTRACT

Two studies examined the role of ingroup identification in the influence of social consensus information (information about others' beliefs) on intergroup attitudes. Research demonstrates that consensus information influences individuals' intergroup attitudes. However, the extent to which individuals identify with the group providing consensus information seems important to understanding consensus effects. In Study 1, 100 high or low ingroup identifiers received information that other ingroup members held favorable or unfavorable attitudes toward African Americans and then provided their own attitudes. In Study 2, 250 participants completed an ingroup identification manipulation (high, low, or control) before receiving favorable or no consensus information. Results of both studies demonstrated that ingroup identification moderated consensus effects, such that high identifiers were more susceptible to others' beliefs than individuals in the low identification and control conditions. In determining critical factors involved in consensus effects, we hope to create a useful method to promote favorable intergroup attitudes and behaviors.     

The influence of social consensus information on intergroup attitudes: the moderating effects of ingroup identification

Two studies examined the role of ingroup identification in the influence of social consensus information (information about others' beliefs) on intergroup attitudes. Research demonstrates that consensus information influences individuals' intergroup attitudes. However, the extent to which individuals identify with the group providing consensus information seems important to understanding consensus effects. In Study 1, 100 high or low ingroup identifiers received information that other ingroup members held favorable or unfavorable attitudes toward African Americans and then provided their own attitudes. In Study 2, 250 participants completed an ingroup identification manipulation (high, low, or control) before receiving favorable or no consensus information. Results of both studies demonstrated that ingroup identification moderated consensus effects, such that high identifiers were more susceptible to others' beliefs than individuals in the low identification and control conditions. In determining critical factors involved in consensus effects, we hope to create a useful method to promote favorable intergroup attitudes and behaviors.     

Independent benefits of contact and friendship on attitudes toward homosexuals among authoritarians and highly identified heterosexuals

Although intergroup contact is generally associated with positive intergroup attitudes, little is known about whether individual differences moderate these relations, or how contact might operate among prejudice‐prone individuals. The present investigation explores Person × Contact and Person × Friendship interaction patterns among heterosexual university students. As expected, the positive relations of right‐wing authoritarianism (RWA) and heterosexual identification with prejudice against homosexuals were weakened when participants reported increased contact, more positive contact, direct (personal) friendships, or indirect friendships (i.e., ingroup friends with outgroup friends) with homosexuals. These patterns held after controlling statistically for each person or situation variable. Contact and friendship exerted smaller or negligible effects among low authoritarians or low identifiers. Tests of indirect effects revealed that among high authoritarians or high identifiers, contact and friendship exerted influence on attitudes through group‐level perceptions that homosexuals promote societal values and through increased self–other overlap with gay friends, each otherwise resisted by these individuals. Overall these results suggest that: (a) intergroup contact and intergroup friendship are related but distinct constructs; and (b) past findings underestimate contact effects by collapsing across levels of personal biases. Copyright © 2008 John Wiley & Sons, Ltd.     

The induction of shared identity: the positive role of individual distinctiveness for groups

This article examines inductive processes of social identity formation, the bottom-up processes by which individual group members influence a social identity, integrating it with work on entitativity. Three studies tested the prediction that feelings of individual distinctiveness mediate the relation between inductive social identity formation and entitativity and that entitativity in turn predicts identification. The studies provided consistent support for this theoretical model over alternative models, using a range of different social groups and methods. Study 1 found support for the model in self-selected small groups. Study 2 supported it with a much broader set of groups that were not self-selected. Finally, Study 3 varied levels of inductive social identity formation systematically by varying group size and provided direct support for the hypothesized causal relations.     

Effective leadership in salient groups: revisiting leader-member exchange theory from the perspective of the social identity theory of leadership

Two studies compared leader-member exchange (LMX) theory and the social identity theory of leadership. Study 1 surveyed 439 employees of organizations in Wales, measuring work group salience, leader-member relations, and perceived leadership effectiveness. Study 2 surveyed 128 members of organizations in India, measuring identification not salience and also individualism/collectivism. Both studies provided good support for social identity predictions. Depersonalized leader-member relations were associated with greater leadership effectiveness among high-than low-salient groups (Study 1) and among high than low identifiers (Study 2). Personalized leadership effectiveness was less affected by salience (Study 1) and unaffected by identification (Study 2). Low-salience groups preferred personalized leadership more than did high-salience groups (Study 1). Low identifiers showed no preference but high identifiers preferred depersonalized leadership (Study 2). In Study 2, collectivists did not prefer depersonalized as opposed to personalized leadership, whereas individualists did, probably because collectivists focus more on the relational self.     

Identification with a wrongful subgroup and the feeling of collective guilt

The present study examined the relationship between group identification and the feeling of collective guilt. This study argued that identification with a subgroup of one's ingroup (subgroup identification) would predict the feeling of collective guilt better than identification with the whole ingroup (whole‐group identification). To manipulate the level of subgroup identification, we instructed participants to imagine the presence of a close friend (vs a friend of one's close friend) in a fictitious subgroup. In Experiment 1, we predicted and found that high subgroup identifiers experienced less collective guilt compared to low subgroup identifiers, regardless of their degree of whole‐group identification. In contrast, the results from Experiment 2 indicated that when the presence of the third party was made salient, high subgroup identifiers experienced more collective guilt in comparison to low subgroup identifiers. The importance of interpersonal connections for collective responsibility and the facilitating role of the third party for reconciliation of the intergroup conflicts are discussed.     

Group Distinctiveness,Political Identification,and the Third-Person Effect: Perceptions of a Political Campaign in the 2004 Greek National Election

The present study examined the effects of political identification and group distinctiveness on perceptions of media influence during an election campaign. Participants estimated the effect of political communication on self and on voters of two large, nondistinctive political parties and two small, distinctive political parties. Nondistinctive party members showed an ingroup bias (i.e., greater perceived media influence on the outgroup) irrespective of strength of identification compared to the nondistinctive outgroups, whereas they did not show any bias (high identifiers) or even reverse bias (low identifiers) toward the distinctive outgroups. Distinctive party members showed an ingroup bias (irrespective of strength of identification) against the nondistinctive outgroups and an ingroup bias (high identifiers) or no bias (low identifiers) toward the distinctive outgroups. Ingroup assimilation (i.e., lack of difference in perceived influence between self and ingroup) was evident for distinctive party members, but not for nondistinctive party members. Results highlight the importance of group distinctiveness and identification in third-person perceptions.     

Efficiency and defense motivated ingroup projection: Sources of protoypicality in intergroup relations

Members of higher status groups generalize characteristics of their ingroup to superordinate categories that serve as a frame of reference for comparisons with outgroups (ingroup projection). We propose that the causal process depends on the security of the intergroup context: When intergroup relations are secure, projection derives from a motivation to represent the superordinate category efficiently; when they are insecure, projection is a defense motivated process. Accordingly, we hypothesized that inducing participants to use heuristic vs. systematic information processing (via time pressure, cognitive load, or thoughtfulness instructions) would have differential effects on ingroup projection in secure as compared to insecure intergroup relations. Three experiments manipulated security of the intergroup context and information processing mode in artificial (Studies 1 and 2) or natural (Study 3) groups. We found that time pressure increased ingroup projection in the secure-group condition but decreased it in the insecure-group condition (Study 1), cognitive load increased projection in the secure but not in the insecure condition (Study 2) and thoughtfulness instructions increased projection for high identifiers in the insecure but not in the secure condition (Study 3). Results support the hypothesis that ingroup projection occurs as a cognitive bias in secure intergroup relations but that it is socially motivated by the specific intergroup relation when this relation is insecure.     

Differentiation between and within groups: the influence of individualist and collectivist group norms

The power of individualist and collectivist group norms to influence intergroup and inter‐individual differentiation was examined in three studies. Study 1 revealed that intergroup differentiation was lower when group norms prescribed individualism than when they prescribed collectivism. However, inter‐individual differentiation was higher when group norms endorsed individualism than when they promoted collectivism. In Studies 2 and 3 we found evidence for the moderating effect of group salience on the relationship between norms and differentiation. Specifically, the effect that individualist group norms reduced intergroup differentiation but enhanced inter‐individual differentiation was more pronounced when group salience was high rather than low. This finding demonstrates that conformity to a group norm prescribing individualism influences the manner in which positive differentiation is expressed. The discussion focuses on the caveats of introducing individualist group norms when attempting to reduce intergroup differentiation. Copyright © 2006 John Wiley & Sons, Ltd.     

Divided groups need leadership: A study of the effectiveness of collective identity,dual identity,and intergroup relational identity rhetoric

Reducing intergroup conflict is a significant leadership challenge. Leaders can alleviate conflict by promoting a collective, dual, or intergroup relational identity, but they should avoid provoking subgroup identity distinctiveness threat. Drawing on intergroup leadership theory, we conducted an experiment (N = 184) examining evaluations of a leader who promoted a dual, collective, or intergroup relational identity under low or high subgroup identity distinctiveness threat. We hypothesized that identity distinctiveness threat would improve evaluations of a leader promoting an intergroup relational identity, and worsen evaluations of a leader promoting a collective identity. Although a leader promoting a dual identity is typically preferred to one promoting a collective identity, we expected a leader promoting dual identity to receive worse evaluations than a leader promoting an intergroup relational identity. These hypotheses were supported, providing additional support for intergroup leadership theory and demonstrating the utility of employing intergroup relational identity rhetoric.     

Intergroup relations and nursing

The applicability of Tajfel's social identity theory of intergroup relations was tested within a field situation of nursing, where high and low status trainee nursing groups are undergoing social change in status relations through a merger. The status relations of the two groups were assessed by examining advantages, disadvantages and subjective characteristics attributed to the groups. Close contact between groups may account for the unexpected reduction in intergroup differentiation when explict comparisons were made. No greater illegitimacy in perceived status relations was reported by the low status group, although more dissatisfactions were evidenced in terms of attributed disadvantages, a less positive ingroup identification, and a high proportion of the low status group who want change either through movement into the superior group, or by dissolving status relations through the merging of the two groups. Attempts to merge are geared towards increasing similarity between groups by gaining recognition for those high status characteristics the group believes it has acquired. With a view to social change, the non-mobile low status subgroup are evolving a new and positive social identity for the group, perceiving little difference between groups. Strong intergroup differentiation by the high status group reflects the perceived threat of social change to the high status group.