Design inspired by Blackle

Dr. Rik Crutzen

Department of Health Promotion
Maastricht University

rik (dot) crutzen (at) maastrichtuniversity (dot) nl

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I. The dynamics of behaviour (change)

Together with Gjalt-Jorn Peters (Open University, The Netherlands), I have published an open access article in Health Psychology Review about pragmatic nihilism: a view on behaviour (change) that enables integrating theories in a flexible and accurate manner and that emphasizes the importance of operationalisations. This is a first step towards a broader perspective on the dynamics of behaviour change and how to study this.


II. Recommender systems

Together with Philippe Giabbanelli (Northern Illinois University, USA), I am exploring a novel combination of impactful but resource-intensive interventions (such as provided by therapists) with fully automated interventions. More specifically, Internet-delivered interventions that capture the dynamics of behaviours through recommender systems. Background information can be found in a paper in Health Informatics Journal.


III. IPEBA: Iterative Protocol for Evidence Base Accumulation

Together with Gjalt-Jorn Peters (Open University, The Netherlands) and Marijn de Bruin (University of Aberdeen, UK), I have published a paper about meta-regressions on evaluations of behaviour change interventions, deriving each method's effectiveness from its association to intervention effect size. There are a range of issues that raise concern about whether this approach is actually furthering or instead obstructing the advancement of health psychology theories and the quality of health behaviour change interventions. The paper is available as open access publication in Health Psychology Review and serves as a starting point for further research. Together with Dianne Cyr (Simon Fraser University, Canada), I have conducted a study based on the recommendations in this paper. More specifically, a full-factorial design is used to explore the optimal combination of parameters for use in an online context. The paper is available as open access publication in Frontiers in Psychology.