ISSN 2043-8087
Journal of Experimental Psychopathology
 Volume 4, Issue 3, 226-238, 2013
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Drinking in a Micro-Perspective: The Role of Engagement in Imitation of Sips of Alcoholic Beverages

Dr. Helle Larsen(a,b), Dr. Anna Lichtwarck-Aschoff(a), Dr. Emmanuel Kuntsche(a,c), prof. Isabela Granic(a) and prof. Rutger C. M. E. Engels(a)
(a) Behavioural Science Institute, Radboud University Nijmegen, the Netherlands
(b) Developmental Psychology, ADAPT Lab, University of Amsterdam, the Netherlands
(c) Addiction Switzerland, Research Institute, Lausanne London. UK

Volume 4, Issue 3, 2013, Pages 226-238

In the current study, we used a real-time approach to test whether engagement during an interaction was related to imitation of another person's drinking behaviour. We observed moment-to-moment engagement levels and sipping behaviour during a 30 minute interaction between same-sex confederates and participants in a semi-naturalistic ad lib drinking context (N = 34 dyads; 18 males; 18-25 years). We applied multilevel proportional hazard models to test the relationships between engagement levels and imitation of sipping, when consuming alcohol compared to soda. Results showed that engagement levels were not related to the propensity to imitate sipping. Whether the dyad consumed alcoholic or non-alcoholic beverages did not moderate the associations between engagement and imitation of sipping.

Table of Contents
Participants and Design
Confederates' sipping.
Participants' sipping and imitation.
Self-reported engagement.
Strategy of Analysis
Appendix: Self-reported engagement measure based on likability (Reysen, 2005)
Engagement: verbal and non-verbal behaviours coded to identify the engagement levels

Correspondence to
Helle Larsen, Developmental Psychology, ADAPT Lab, University of Amsterdam, Weesperplein 4, 1018 XA Amsterdam, The Netherlands.

Alcohol. Imitation. Sipping. Engagement. Multi-level proportional hazard models.

Received 17 Feb 2012; Revised 17 Aug 2012; Accepted 19 Aug 2012; In Press 3 Feb 2013

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