Integrating social identity theory and the theory of planned behaviour to explain decisions to engage in sustainable agricultural practices.

The present research integrates core aspects of social identity theory with the theory of planned behaviour to investigate factors influencing engagement in sustainable agricultural practices. Using a two-wave prospective design, two studies were conducted with samples of farmers (N = 609 and N = 259, respectively). At Time 1, a questionnaire survey assessed theory of planned behaviour variables in relation to engaging in riparian zone management (a sustainable agricultural practice). In addition, intergroup perceptions (i.e. relations between rural and urban groups), group norms and group identification were assessed. At Time 2, self-reported behaviour was measured. There was support for the integrated model across both studies. As predicted, past behaviour, attitudes and perceived behavioural control were significant predictors of intentions, and intentions significantly predicted self-reported behaviour. Group norms and intergroup perceptions were also significant predictors of intentions providing support for the inclusion of social identity concepts in the theory of planned behaviour. More supportive group norms were associated with higher intentions, especially for high-group identifiers. In contrast, more negative intergroup perceptions were associated with lower intentions and, unexpectedly, this effect only emerged for low-group identifiers. This suggests that in the context of decisions to engage in riparian zone management, an important sustainable agricultural practice, high identifiers are influenced predominantly by in-group rather than out-group considerations, whereas low identifiers may attend to cues from both the in-group and the out-group when making their decisions.

[1]  Roderick M. Kramer,et al.  Trust and distrust in organizations: emerging perspectives, enduring questions. , 1999, Annual review of psychology.

[2]  M. Lipton,et al.  Rural-Urban Dimensions of Inequality Change. Working Papers. , 2000 .

[3]  Stefano Livi,et al.  Self-Identity and the Theory of Planned Behavior in the Prediction of Health Behavior and Leisure Activity , 2003 .

[4]  Michael A. Hogg,et al.  Intergroup relations and group solidarity : Effects of group identification and social beliefs on depersonalized attraction , 1996 .

[5]  Donald M. Taylor,et al.  Normative Influence and Rational Conflict Decisions: Group Norms and Cost-Benefit Analyses for Intergroup Behavior , 2005 .

[6]  Matthew J. Hornsey,et al.  Criticizing Groups from the Inside and the Outside: An Identity Perspective on the Intergroup Sensitivity Effect , 2004, Personality & social psychology bulletin.

[7]  M. Hornsey.  Why being right is not enough: Predicting defensiveness in the face of group criticism , 2005 .

[8]  Richard D. Harvey,et al.  Perceiving pervasive discrimination among African Americans: Implications for group identification and well-being. , 1999 .

[9]  M. Hogg,et al.  The theory of planned behaviour: self-identity, social identity and group norms. , 1999, The British journal of social psychology.

[10]  N. Ellemers.  The Influence of Socio-structural Variables on Identity Management Strategies , 1993 .

[11]  J. M. Hines,et al.  Analysis and synthesis of research on responsible environmental behavior: A meta-analysis. , 1987 .

[12]  David Trafimow,et al.  Evidence that the type of person affects the strength of the perceived behavioural control-intention relationship. , 2002, The British journal of social psychology.

[13]  K. Moore,et al.  Attitudes and intentions towards purchasing GM food , 2002 .

[14]  M. Hogg,et al.  Group Norms and the Attitude-Behavior Relationship: A Role for Group Identification , 1996 .

[15]  M. Conner,et al.  Extending the Theory of Planned Behavior: A Review and Avenues for Further Research , 1998 .

[16]  D. Trafimow,et al.  The Importance of Subjective Norms for a Minority of People: between Subjects and within-Subjects Analyses , 1996 .

[17]  P. Stern,et al.  Social Structural and Social Psychological Bases of Environmental Concern , 1998 .

[18]  M. Conner,et al.  The Theory of Planned Behaviour , 2004 .

[19]  T. Postmes,et al.  Influence of long-term racial environmental composition on subjective well-being in African Americans. , 2002, Journal of personality and social psychology.

[20]  A comparison of student performance in western Australian schools: Rural and urban differences , 1994 .

[21]  P. Stern.  Psychology and the science of human-environment interactions. , 2000, The American psychologist.

[22]  M. Hogg,et al.  Safer sex behavior: The role of attitudes, norms and control factors , 1994 .

[23]  Gregory P. Shelley,et al.  Perceived rationality, morality, and power of social choice as a function of interdependence structure and social value orientation , 2003 .

[24]  M. Fishbein,et al.  Theories of reasoned action and planned behavior as models of condom use: a meta-analysis. , 2001, Psychological bulletin.

[25]  R. Spears,et al.  Constructing a minority group identity out of shared rejection: The case of international students , 2003 .

[26]  S. Oskamp.  A sustainable future for humanity? How can psychology help? , 2000 .

[27]  Michael A. Tarrant,et al.  The Effect of Respondent Characteristics on General Environmental Attitude-Behavior Correspondence , 1997 .

[28]  T. Postmes,et al.  Short Communication A social identity approach to trust: Interpersonal perception, group membership and trusting behaviour , 2005 .

[29]  Bruce J. Biddle,et al.  Norms, Preferences, Identities and Retention Decisions , 1987 .

[30]  M. Conner,et al.  Efficacy of the Theory of Planned Behaviour: a meta-analytic review. , 2001, The British journal of social psychology.

[31]  C L Blue,et al.  The predictive capacity of the theory of reasoned action and the theory of planned behavior in exercise research: an integrated literature review. , 1995, Research in nursing & health.

[32]  I. Ajzen.  The theory of planned behavior , 1991 .

[33]  Phyllis A. Anastasio,et al.  The Common Ingroup Identity Model: Recategorization and the Reduction of Intergroup Bias , 1993 .

[34]  G. Kok,et al.  The Theory of Planned Behavior: A Review of its Applications to Health-Related Behaviors , 1996, American journal of health promotion : AJHP.

[35]  M. Hogg,et al.  Relations Between High and Low Power Groups: The Importance of Legitimacy , 2003, Personality & social psychology bulletin.

[36]  P. Sparks,et al.  SELF-IDENTITY AND THE THEORY OF PLANNED BEHAVIOR - ASSESSING THE ROLE OF IDENTIFICATION WITH GREEN CONSUMERISM , 1992 .

[37]  Wendy Wood,et al.  Habit and intention in everyday life: The multiple processes by which past behavior predicts future behavior. , 1998 .

[38]  S. Biddle,et al.  A Meta-Analytic Review of the Theories of Reasoned Action and Planned Behavior in Physical Activity: Predictive Validity and the Contribution of Additional Variables , 2002 .