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. 2009 Sep-Oct;33(5):521-9.
doi: 10.5993/ajhb.33.5.5.

Self-efficacy moderates the mediation of intentions into behavior via plans

Sonia Lippke  1 , Amelie U Wiedemann, Jochen P Ziegelmann, Tabea Reuter, Ralf Schwarzer
Affiliations

Self-efficacy moderates the mediation of intentions into behavior via plans

Sonia Lippke et al. Am J Health Behav. 2009 Sep-Oct.

Abstract

Objective: To examine the putative moderating role of self-efficacy in the intention-planning-behavior relationship.

Methods: In N=812 individuals, intentions (independent variable) were assessed at baseline, whereas action plans (mediator), self-efficacy (moderator), and physical activity (dependent variable) were measured again 4 weeks later. We examined a moderated-mediation model.

Results: Self-efficacy moderates the mediation process: the strength of the mediated effect increased along with levels of self-efficacy. The results remain valid after accounting for baseline physical activity.

Conclusions: For plans to mediate the intention-behavior relation, people must hold sufficiently high levels of self-efficacy. If they lack self-efficacy, planning may be in vain.

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