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van Lettow, B. (author), de Vries, H. (author), Burdorf, A. (author), van Empelen, P. (author)Prototypes (i.e., social images representing perceptions of typical persons engaging in or refraining from certain behaviour) have been shown to explain health-related behaviours. The present meta-analysis quantified the strength of the associations of prototype perceptions with health motivation and behaviour. Specifically, the analysis...article 2016
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van Lettow, B. (author), de Vries, H. (author), Burdorf, A. (author), Boon, B. (author), van Empelen, P. (author)This article presents the results of a randomised controlled trial that tests whether two behavioural change strategies provided an additional effect for an existing online intervention (www.drinktest.nl) among Dutch excessive drinking adults: drinker image alteration and cue reminders. Drinktest.nl is a tailored intervention that provides...article 2015
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van Lettow, B. (author), de Vries, H. (author), Burdorf, A. (author), Boon, B. (author), van Empelen, P. (author)Background: Excessive alcohol use is a prevalent and worldwide problem. Excessive drinking causes a significant burden of disease and is associated with both morbidity and excess mortality. Prototype alteration and provision of a cue reminder could be useful strategies to enhance the effectiveness of online tailored interventions for excessive...article 2015
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van Lettow, B. (author), de Vries, H. (author), Burdorf, A. (author), Conner, M. (author), van Empelen, P. (author)Objectives: Prototypes (i.e., social images) predict health-related behaviours and intentions within the context of the Theory of Planned Behaviour (TPB). This study tested the moderating role of temporal stability of drinker prototype perceptions on prototype-intentions and prototype-behaviour relationships, within an augmented TPB. The study...article 2014
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van Lettow, B. (author), de Vries, H. (author), Burdorf, A. (author), Norman, P. (author), van Empelen, P. (author)Objective: Previous research has focused mostly on abstainer and/or general drinker prototypes. The present studies examined an abstainer, moderate drinker and heavy drinker prototype in relation to drinking behaviour. Design: Two studies among young adults aged 18–25 (paper-and-pencil, cross-sectional, N = 140; online, prospective, N = 451)...article 2013
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van Lettow, B. (author), Vermunt, J.K. (author), de Vries, H. (author), Burdorf, A. (author), van Empelen, P. (author)Prototypes (social images) have been shown to influence behaviour, which is likely to depend on the type of image. Prototype evaluation is based on (un)desirable characteristics related to that image. By an elicitation procedure we examined which adjectives are attributed to specific drinker prototypes. In total 149 young Dutch adults (18-25...article 2013
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van Lettow, B. (author), van Empelen, P. (author), de Vries, H. (author), van Burdorf, A. (author)Minisymposium van het Nederlands Congres Volksgezondheid 2011, Duurzaam Gezond gehouden 6 en 7 april De Meervaart Amsterdamarticle 2011