Abstract
Two studies examined hypotheses derived from a Social Identity model of Deindividuation Effects (SIDE) as applied to social influence in computer-mediated communication (CMC) in groups. This model predicts that anonymity can increase social influence if a common group identity is salient. In a first study, group members were primed with a certain type of social behavior (efficiency vs. prosocial norms). Consistent with the model, anonymous groups displayed prime-consistent behavior in their task solutions, whereas identifiable groups did not. This suggests that the primed norm took root in anonymous groups to a greater extent than in identifiable groups. A second study replicated this effect and showed that nonprimed group members conformed to the behavior of primed members, but only when anonymous, suggesting that the primed norm was socially transmitted within the group. Implications for social influence in small groups are discussed.
|
Abrams, D. , Wetherell, M. S. , Cochrane, S. , Hogg, M. A. , & Turner, J. C. (1990). Knowing what you think by knowing who you are: Self-categorization and the nature of norm formation, conformity and group polarization. British Journal of Social Psychology, 29, 97-119. Google Scholar | Crossref | Medline | ISI | |
|
Allport, G. W. (1985). The historical background of social psychology. In G. Lindzey & E. Aronson (Eds.), The handbook of social psychology (Vol. 1, pp. 1-46). Reading, MA: Addison-Wesley. Google Scholar | |
|
Bales, R. F. (1950). Interaction process analysis: A method for the study of small groups. Reading, MA: Addison-Wesley. Google Scholar | |
|
Bargh, J. A. , Chen, M. , & Burrows, L. (1996). The automaticity of social behavior: Direct effects of trait concept and stereotype activation on action. Journal of Personality and Social Psychology, 71, 230-244. Google Scholar | Crossref | Medline | ISI | |
|
Baron, R. M. , & Kenny, D. A. (1986). The moderator-mediator variable distinction in social psychological research: Conceptual, strategic and statistical considerations. Journal of Personality and Social Psychology, 51, 1173-1182. Google Scholar | Crossref | Medline | ISI | |
|
Daft, R. L. , & Lengel, R. H. (1984). Information richness: A new approach to managerial behavior and organizational design. Research in Organizational Behavior, 6, 191-233. Google Scholar | ISI | |
|
Davis, D. , & Brock, T. C. (1975). Use of first-person pronouns as a function of increased objective self-awareness and performance feedback. Journal of Experimental Social Psychology, 11, 381-388. Google Scholar | Crossref | ISI | |
|
Deutsch, M. , & Gerard, H. B. (1955). A study of normative and informational social influences upon individual judgement. Journal of Personality and Social Psychology, 51, 629-636. Google Scholar | |
|
Diener, E. (1980). Deindividuation: The absence of self-awareness and self-regulation in group members. In P. B. Paulus (Ed.), Psychology of group influence (pp. 209-242). Hillsdale, NJ: Lawrence Erlbaum. Google Scholar | |
|
Doosje, B. , Spears, R. , & Koomen, W. (1995). When bad isn’t all bad: Strategic use of sample information in generalization and stereotyping. Journal of Experimental Social Psychology, 69, 642-655. Google Scholar | |
|
French, J. R. P. , & Raven, B. (1959). The bases of social power. In D. Cartwright (Ed.), Studies in social power (pp. 150-167). Ann Arbor, MI: Institute for Social Research. Google Scholar | |
|
Haslam, A. (1997). Stereotyping and social influence: The foundations of stereotype consensus. In R. Spears , P. J. Oakes , N. Ellemers , & S. A. Haslam (Eds.), The social psychology of stereotyping and group life (pp. 119-143). Oxford, UK: Basil Blackwell. Google Scholar | |
|
Hyman, H. (1942). The social psychology of status. Archives of Psychology, 38 (Whole No. 269), 94. Google Scholar | |
|
Kiesler, S. , Siegel, J. , & McGuire, T. W. (1984). Social psychological aspects of computer-mediated communication. American Psychologist, 39, 1123-1134. Google Scholar | Crossref | ISI | |
|
Latané, B. (1981). The psychology of social impact. American Psychologist, 36, 343-356. Google Scholar | Crossref | ISI | |
|
Lewin, K. (1997). Resolving social conflicts: Selected papers on group dynamics (G. Weiss Lewin , Ed.). Washington, DC: American Psychological Association. (Original work published 1948) Google Scholar | Crossref | |
|
Lott, A. J. , & Lott, B. E. (1965). Group cohesiveness as interpersonal attraction: A review of relationships with antecedent and consequent variables. Psychological Bulletin, 64, 259-309. Google Scholar | Crossref | Medline | |
|
Martin, L. L. (1986). Set/reset: Use and disuse of concepts in impression formation. Journal of Personality and Social Psychology, 51, 493-504. Google Scholar | Crossref | Medline | ISI | |
|
Matheson, K. , & Zanna, M. P. (1990). Computer-mediated communications: The focus is on me [Special issue: Computing: Social and policy issues]. Social Science Computer Review, 8, 1-12. Google Scholar | SAGE Journals | |
|
McKenna, K. Y. A. , & Bargh, J. A. (1998). Coming out in the age of the Internet: Identity “demarginalization” through virtual group participation. Journal of Personality and Social Psychology, 75, 681-694. Google Scholar | Crossref | ISI | |
|
McLeod, P. L. , Baron, R. S. , Marti, M. W. , & Yoon, K. (1997). The eyes have it: Minority influence in face-to-face and computer-mediated group discussion. Journal of Applied Psychology, 82, 706-718. Google Scholar | Crossref | ISI | |
|
Postmes, T. , & Spears, R. (1998). Deindividuation and anti-normative behavior: A meta-analysis. Psychological Bulletin, 123, 238-259. Google Scholar | Crossref | ISI | |
|
Postmes, T. , Spears, R. , & Lea, M. (1998). Breaching or building social boundaries? SIDE-effects of computer-mediated communication. Communication Research, 25, 689-715. Google Scholar | SAGE Journals | ISI | |
|
Postmes, T. , Spears, R. , & Lea, M. (1999). Inter-group differentiation in computer-mediated communication: Effects of depersonalization. Manuscript submitted for publication. Google Scholar | |
|
Postmes, T. , Spears, R. , & Lea, M. (2000). The formation of group norms in computer-mediated communication. Human Communication Research, 26, 341-371. Google Scholar | Crossref | ISI | |
|
Postmes, T. , Spears, R. , & Cihangir (2001). Quality of decision making and group norms. Journal of Personality and Social Psychology, 80, 918-930. Google Scholar | Crossref | Medline | ISI | |
|
Prentice-Dunn, S. , & Rogers, R. W. (1989). Deindividuation and the self-regulation of behavior. In P. B. Paulus (Ed.), The psychology of group influence (2nd ed., pp. 86-109). Hillsdale, NJ: Lawrence Erlbaum. Google Scholar | |
|
Reicher, S. D. (1987). Crowd behaviour as social action. In J. C. Turner , M. A. Hogg , P. J. Oakes , S. D. Reicher , & M. S. Wetherell (Eds.), Rediscovering the social group: A self-categorization theory (pp. 171-202). Oxford, UK: Basil Blackwell. Google Scholar | |
|
Reicher, S. D. , Spears, R. , & Postmes, T. (1995). A social identity model of deindividuation phenomena. In W. Stroebe & M. Hewstone (Eds.), European review of social psychology, Vol. 6 (pp. 161-198). Chichester, UK: Wiley. Google Scholar | Crossref | |
|
Rutter, D. R. (1984). Looking and seeing: The role of visual communication in social interaction. Chichester, UK: Wiley. Google Scholar | |
|
Sherif, M. (1935). A study of some social factors in perception. Archives of Psychology, 187, 1-60. Google Scholar | |
|
Short, J. A. , Williams, E. , & Christie, B. (1976). The social psychology of telecommunications. Chichester, UK: Wiley. Google Scholar | |
|
Spears, R. , & Lea, M. (1992). Social influence and the influence of the “social” in computer-mediated communication. In M. Lea (Ed.), Contexts of computer-mediated communication (pp. 30-65). Hemel Hempstead, UK: Harvester Wheatsheaf. Google Scholar | |
|
Spears, R. , Lea, M. , & Lee, S. (1990). De-individuation and group polarization in computer-mediated communication. British Journal of Social Psychology, 29, 121-134. Google Scholar | Crossref | ISI | |
|
Srull, T. K. , & Wyer, R. S., Jr. (1979). The role of category accessibility in the interpretation of information about persons: Some determinants and implications. Journal of Personality and Social Psychology, 37, 1660-1672. Google Scholar | Crossref | ISI | |
|
Turner, J. C. (1982). Towards a cognitive redefinition of the group. In H. Tajfel (Ed.), Social identity and intergroup relations. Cambridge, UK: Cambridge University Press. Google Scholar | |
|
Turner, J. C. (1987). The analysis of social influence. In J. C. Turner , M. A. Hogg , P. J. Oakes , S. D. Reicher , & M. S. Wetherell (Eds.), Rediscovering the social group: A self-categorization theory. Oxford, UK: Basil Blackwell. Google Scholar | |
|
Turner, J. C. (1991). Social influence. Milton Keynes, UK: Open University Press. Google Scholar | |
|
Zimbardo, P. G. (1969). The human choice: Individuation, reason, and order vs. deindividuation, impulse and chaos. In W. J. Arnold & D. Levine (Eds.), Nebraska symposium on motivation (pp. 237-307). Lincoln: University of Nebraska Press. Google Scholar |

