title: Does action planning moderate the intention-habit interaction in the exercise domain? A three-way interaction analysis investigation.
abstract: Both habit strength and action planning have been found to moderate the intention-exercise behaviour relationship, but no research exists that has investigated how habit strength and action planning simultaneously influence this relationship. The present study was designed to explore this issue in a prospective sample of undergraduate students (N = 415): action planning, habit strength, intention, attitudes, subjective norms and perceived behavioural control were assessed at baseline and exercise behaviour was assessed 2 weeks later. Both habit strength and action planning moderated the intention-exercise relationship, with stronger relationship at higher levels of planning or habit strength. Decomposing a significant action planning × habit strength × intention interaction showed that the strength of the intention-exercise relationship progressed linearly through levels of action planning and habit strength. These novel results show that action planning strengthens the intention-habit strength interaction in the exercise domain: exercise interventions should therefore focus on simultaneously bolstering action planning and habit strength.
authors: Amsterdam School of Communication Research ASCoR, University of Amsterdam, Kloveniersburgwal 48, 1012 CX, Amsterdam, The Netherlands. g.j.debruijn@uva.nl
authors: Gert-Jan
authors: GJ
authors: de Bruijn
authors: Ryan E
authors: RE
authors: Rhodes
authors: Liesbeth
authors: L
authors: van Osch
mesh_terms: D001290:Attitude; D015444:Exercise / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D033182:Intention; D007389:Internal-External Control; D008297:Male; D011446:Prospective Studies; D055815:Young Adult