Self-regulation prompts can increase fruit consumption: A one-hour randomised controlled online trial
Objective
: The purpose was to examine whether a 1-h intervention would help increase fruit consumption in motivated individuals and to study the role of self-regulatory mechanisms in the behaviour change process, with a particular focus on dietary planning and action
control.
Methods : A randomised controlled trial compared a 1-h online intervention with controls in 791 participants. Dependent variables were fruit intake, planning to consume and dietary action control.
Results : Experimental condition by time interactions documented superior treatment effects for the self-regulation group, although all participants benefited from the study. To identify the contribution of the intervention ingredients, multiple mediation analyses were conducted that yielded mediator effects for dietary action control and planning.
Conclusions : A very brief self-regulatory nutrition intervention was superior to a control condition. Dietary planning and action control seem to play a major role in the mechanisms that facilitate fruit intake.
Methods : A randomised controlled trial compared a 1-h online intervention with controls in 791 participants. Dependent variables were fruit intake, planning to consume and dietary action control.
Results : Experimental condition by time interactions documented superior treatment effects for the self-regulation group, although all participants benefited from the study. To identify the contribution of the intervention ingredients, multiple mediation analyses were conducted that yielded mediator effects for dietary action control and planning.
Conclusions : A very brief self-regulatory nutrition intervention was superior to a control condition. Dietary planning and action control seem to play a major role in the mechanisms that facilitate fruit intake.
Keywords: action control; nutrition; planning; randomised controlled trial; self-regulation
Document Type: Research Article
Affiliations: 1: Health Psychology, Freie Universität Berlin, Berlin, Germany 2: School of Psychological Science, Oregon State University, Corvallis, OR, USA 3: Jacobs Center on Lifelong Learning, Jacobs University, Bremen, Germany
Publication date: 01 May 2013
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