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Both adults and adolescents often conform their behavior and opinions to peer groups, even when they themselves know better. The current study investigated this phenomenon in 24 groups of 4 children between 4; 2 and 4; 9 years of age. Children often made their judgments conform to those of 3 peers, who had made obviously erroneous but unanimous public judgments right before them. A follow-up study with 18 groups of 4 children between 4; 0 and 4; 6 years of age revealed that children did not change their \"real\" judgment of the situation, but only their public expression of it. Preschool children are subject to peer pressure, indicating sensitivity to peers as a primary social reference group already during the preschool years.

People often conform to others with whom they associate. Surprisingly, however, little is known about the possible hormonal mechanisms that may underlie in-group conformity. Here, we examined whether conformity toward one's in-group is altered by oxytocin, a neuropeptide often implicated in social behavior. After administration of either oxytocin or a placebo, participants were asked to provide attractiveness ratings of unfamiliar visual stimuli. While viewing each stimulus, participants were shown ratings of that stimulus provided by both in-group and out-group members. Results demonstrated that on trials in which the ratings of the in-group and out-group were incongruent, the ratings of participants given oxytocin conformed to the ratings of their in-group but not of their out-group. Participants given a placebo did not show this in-group bias. These findings indicate that administration of oxytocin can influence subjective preferences, and they support the view that oxytocin's effects on social behavior are context dependent.

Through archival data from 225 local banks founded between 2006 and 2009, as well as interviews with 73 bank founders, this paper explores the influence of founders' institutional logics, specifically financial and community logics, on the degree of risk taking in the organizations they found. Local bank founders steeped in a financial logic see the bank as an investment vehicle and seek to maximize profits, while those motivated by a community logic are driven to meet community needs and focus less on profits. Despite demands from regulators and consultants that promote uniformity of operations, variation exists in banks' risk strategies that seems connected to values and taken-for-granted predispositions inherent in such institutional logics. But such a connection is empirically demonstrated only in banks with larger founding teams. In those, increased internal representation of a financial logic is associated with higher use of risky deposit instruments to finance rapid asset growth, while a higher representation of a community logic is associated with lower use of such risky instruments. Furthering research on hybrid organizations that combine competing logics, this paper suggests that individuals are more likely to be the carriers of institutional influences especially when operating collectively in larger teams, in which one expects more group conformity and diffusion of responsibility. In smaller teams, individual discretion is more likely to dominate institutional forces.

Much research has documented the harmful psychological effects of being ostracized, but research has yet to determine whether compliance with ostracizing other people is psychologically costly. We conducted two studies guided by self-determination theory to explore this question, using a paradigm that borrows from both ostracism research and Milgram's classic study of obedience. Supporting our guiding hypothesis that compliance with ostracizing others carries psychological costs, the results of Experiment I showed that such compliance worsened mood compared with complying with instructions to include others and with receiving no instructions involving inclusion or exclusion, an effect explained by thwarted psychological needs resulting from ostracizing others. Experiment 2 revealed increases in negative affect both when individuals ostracized others and when individuals were ostracized themselves. Our findings point to the robust psychological costs associated with ostracizing other people, with implications for group behaviors.

Fifty years ago, Serge Moscovici first outlined a theory of social representations. In this article, we attempt to discuss and to contextualize research that has been inspired by this original impetus from the particular angle of its relevance to political psychology. We argue that four defining components of social representations need to be taken into account, and that these elements need to be articulated with insights from the social identity tradition about the centrality of self and group constructions in order to develop original insights into political psychological phenomena. First, social representations are shared knowledge, and the way interpretations of the world are collectively elaborated is critical to the way people are able to act within the world. Second, social representations are meta-knowledge, which implies that what people assume relevant others know, think, or value is part of their own interpretative grid, and that collective behavior can often be influenced more powerfully at the level of meta-representations than of intimate beliefs. Third, social representations are enacted communication, which means that social influence is exerted by the factors that constrain social practices as much as by the discourse that interprets these practices.Fourth, social representations are world-making assumptions: collective understandings do not only reflect existing realities but often bring social reality into being. Put together, these four components provide a distinctive theoretical perspective on power, resistance and conflict. The added conceptual value of this perspective is illustrated by showing how it allows revisiting ethnic conflict in the former Yugoslavia. We conclude with implications for research practices and discuss how the proposed model of social representations invites us to define new priorities and challenges for the methods used to study political psychological phenomena.

PurposeFacilitating members' continual participation in a community is crucial for ensuring the community's long-term survival. However, knowledge regarding whether member similarity is related to member participation and the mechanism underlying this relationship is limited. Drawing on similarity–attraction, social exchange and social identity theories, this study explored the influences of different facets of similarity (i.e. value, personality and goal similarity) on group norm conformity, group identity and social participation.Design/methodology/approachData were collected from 444 Taiwanese members of social networking sites (SNSs), and structural equation modeling was employed to examine the hypothesized relationships.FindingsThe results revealed that value similarity directly affected group norm conformity but did not directly affect group identity; personality similarity influenced group identity but not group norm conformity. Goal similarity had positive influences on group norm conformity and group identity. Moreover, group norm conformity had direct and positive influences on group identity and social participation; group identity also had a positive influence on social participation.Originality/valueOn the basis of the aforementioned findings, this study contributes to the understanding of factors facilitating SNS members' participation from the perspective of similarity. These findings can serve as a reference for SNS administrators to facilitate social participation by emphasizing member similarity.

Most experiments on conformity have been conducted in relation to judgments of physical reality; surprisingly few papers have experimentally examined the influence of group norms on social issues with a moral component. In response to this, participants were told that they were either in a minority or in a majority relative to their university group in terms of their attitudes toward recognition of gay couples in law (Expt 1: N = 205) and a government apology to Aborigines (Expt 2: N = 110). In both experiments, it was found that participants who had a weak moral basis for their attitude conformed to the group norm on private behaviours. In contrast, those who had a strong moral basis for their attitude showed non‐conformity on private behaviours and counter‐conformity on public behaviours. Incidences of non‐conformity and counter‐conformity are discussed with reference to theory and research on normative influence.

Background Perception of pressure to conform prevents learners from actively participating in educational encounters. We expected that residents would report experiencing different amounts of pressure to conform in a variety of educational settings. Methods A total of 166 residents completed questionnaires about the frequency of conformity pressure they experience across 14 teaching and clinical settings. We examined many individual characteristics such as their age, sex, international student status, level of education, and tolerance of ambiguity; and situational characteristics such as residency program, type of learning session, status of group members, and type of rotation to determine when conformity pressure is most likely to occur. Results The majority of participants (89.8%) reported pressure to conform at least sometimes in at least one educational or clinical setting. Residents reported higher rates of conformity during informal, rather than formal, teaching sessions, p  < .001. Also, pressure was greater when residents interacted with higher status group members, but not with the same or lower level status members, p  < .001. Effect sizes were in the moderate range. Conclusions The findings suggest that most residents do report feeling pressure to conform in their residency settings. This result is consistent with observations of medical students, nursing students, and clerks conforming in response to inaccurate information within experimental studies. Perception of pressure is associated with the setting rather than the trainee personal characteristics.

Using the Theory of Planned Behavior (I. Ajzen, 1985, 1991) and referent group (student) norms and identification (D. J. Terry & M. A. Hogg, 1996), the authors longitudinally predicted healthy eating intentions and behavior in a sample of 137 university students. Specifically, attitudes, subjective norms, and perceived control predicted intentions at Time 1, which predicted self-reported behavior at Time 2. There was also a link between intentions and observed behavior at Time 2. Beyond the planned behavior variables, referent group norms for university students' eating behavior interacted with participants' identification as students to predict healthy eating intentions. The authors discussed implications for researcher's conceptualization of normative influence and for interventions into this group's eating behavior.

We present a new class of models of players’ reasoning in non-cooperative games, inspired by David Lewis's account of common knowledge. We argue that the models in this class formalize common knowledge of rationality in a way that is distinctive, in virtue of modelling steps of reasoning; and attractive, in virtue of being able to represent coherently common knowledge of any consistent standard of individual decision-theoretic rationality. We contrast our approach with that of Robert Aumann (1987), arguing that the former avoids and diagnoses certain paradoxes to which the latter may give rise when extended in particular ways.