The role of context and timeframe in moderating relationships within the theory of planned behaviour.

Psychology , School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham, UK.
Psychology & Health (Impact Factor: 1.95). 09/2011; 26(9):1225-40. DOI: 10.1080/08870446.2011.572260
Source: PubMed

ABSTRACT This study examined the moderating effect of context and timeframe on the predictive ability of Theory of Planned Behaviour (TPB) constructs. Three hundred and eighty-three students completed TPB measures either in a campus bar or a library and were randomly allocated to one of three timeframe conditions: tonight, tomorrow or next week. There was a three-way interaction such that the subjective norms of participants in a bar were more predictive of their intentions to binge drink that night, whereas the subjective norms of participants in a library were less predictive of intentions to binge drink that night. This research provides empirical evidence that ignoring context may result in underestimation of the importance of normative factors in binge drinking. It also suggests that other research utilising the TPB needs to take greater account of the impact of context of data collection, which has been neglected to date.

  • [Show abstract] [Hide abstract]
    ABSTRACT: Repeated action can lead to the formation of habits and identification as 'the kind of person' that performs the behaviour. This has led to the suggestion that identity-relevance is a facet of habit. This study explores conceptual overlap between habit and identity, and examines where the two constructs fit into an extended Theory of Planned Behaviour (TPB) model of binge-drinking among university students. Prospective, questionnaire-based correlational design. A total of 167 UK university students completed baseline measures of past behaviour, self-identity, the Self-Report Habit Index (SRHI), and TPB constructs. One week later, 128 participants completed a follow-up behaviour measure. Factor analyses of the SRHI and four identity items revealed two correlated but distinct factors, relating to habit and identity, respectively. Hierarchical regression analyses of intention and behaviour showed that identity contributed over and above TPB constructs to the prediction of intention, whereas habit predicted behaviour directly, and interacted with intentions in predicting behaviour. Habits unexpectedly strengthened the intention-behaviour relation, such that strong intenders were more likely to binge-drink where they also had strong habits. Identity and habit are conceptually discrete and impact differently on binge-drinking. Findings have implications for habit theory and measurement. Recommendations for student alcohol consumption reduction initiatives are offered.
    British Journal of Health Psychology 11/2011; 17(3):565-81. · 2.70 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Objective: To proffer a theoretically driven assessment of the validity of research which examines alcohol-related normative beliefs. Methods: A systematic review of 68 articles matching the inclusion criteria, published between 1970 and 2013. Results: Potential causes of deviations in research findings are identified and compelling gaps in our knowledge with regards to the influence of participant gender, age and contextual factors are highlighted and discussed in relation to the broader literature. Conclusions: It is proposed that a standardization of research approaches and alcohol intake measures are required in order to increase the validity of present research and enable useful comparisons between studies. Further attention to key, potentially mediatory variables is also highlighted as important for increasing research validity with a view to facilitating the improvement of interventions.
    Drugs Education Prevention & Policy 03/2014; · 0.53 Impact Factor


Available from
Dec 10, 2014