Volume 25, Issue 1 p. 189-209
Original Article

Reasoned and implicit processes in heavy episodic drinking: An integrated dual-process model

Kyra Hamilton

Corresponding Author

Kyra Hamilton

School of Applied Psychology, Menzies Health Institute Queensland, Griffith University, Brisbane, Queensland, Australia

Laboratory of Self-Regulation and Health Psychology and Behavioural Medicine Research Group, School of Psychology, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia

Correspondence should be addressed to Kyra Hamilton, Health and Psychology Innovations (HaPI) Laboratory, School of Applied Psychology, Griffith University, Mt Gravatt Campus, 176 Messines Ridge Road, Mt Gravatt, Queensland, Qld 4122, Australia (email: [email protected]).

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Isabelle Gibbs

Isabelle Gibbs

School of Applied Psychology, Menzies Health Institute Queensland, Griffith University, Brisbane, Queensland, Australia

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Jacob J. Keech

Jacob J. Keech

School of Applied Psychology, Menzies Health Institute Queensland, Griffith University, Brisbane, Queensland, Australia

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Martin S. Hagger

Martin S. Hagger

School of Applied Psychology, Menzies Health Institute Queensland, Griffith University, Brisbane, Queensland, Australia

Psychological Sciences, University of California, Merced, California, USA

Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland

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First published: 26 December 2019
Citations: 36

Abstract

Objectives

University students commonly engage in heavy episodic drinking (HED), which contributes to injury risk, deleterious educational outcomes, and economic costs. Identification of the determinants of this risky behaviour may provide formative evidence on which to base effective interventions to curb HED in this population. Drawing from theories of social cognition and dual-process models, this study tested key hypotheses relating to reasoned and implicit pathways to action for HED in a sample of Australian university students who drink alcohol.

Design

A two-wave correlational design was adopted.

Methods

Students (N = 204) completed self-reported constructs from social cognition theories with respect to HED at an initial time point (T1): attitude, subjective norm, perceived behavioural control, intentions, habit, past behaviour, and implicit alcohol identity. Four weeks later (T2), students self-reported their HED behaviour and habit.

Results

An initial path model indicated attitude and subjective norm predicted intentions, and intentions and implicit alcohol identity predicted HED. Inclusion of past behaviour and habit revealed direct effects of these on HED. Effects of T1 habit on HED were indirect through T2 habit, and there were indirect effects of past behaviour on HED through habit at both time points and the social cognition constructs. Direct effects of intentions and implicit alcohol identity, and indirect effects of attitude and subjective norm, on HED, were attenuated by the inclusion of past behaviour and habit.

Conclusion

Results indicate that university students’ HED tends to be governed by non-conscious, automatic processes than conscious, intentional processes.

Statement of contribution

What is already known on this subject?

  • Social cognitive factors are associated with risky alcohol consumption behaviours.
  • Dual-process models are being used to explain health behaviours, such as heavy episodic drinking (HED).

What does this study add?

  • Past HED behaviour and HED habits have direct and indirect effects on students’ HED behaviour.
  • Past behaviour and habit attenuate the effects of intentions and implicit alcohol identity on HED.

Conflicts of interest

The authors declare that they have no conflict of interest.

Data availability statement

Data files and analysis scripts are available online from the Open Science Framework project for this study: https://osf.io/rj8ud.