title: Moderating role of attitudinal ambivalence within the theory of planned behaviour.
abstract: The present study examined the moderating role of attitudinal ambivalence within the theory of planned behaviour (TPB). Attitude, subjective norm, perceived behavioural control (PBC), behavioural intentions and self-reported behaviour were assessed in relation to 20 healthy eating behaviours in a prospective questionnaire design in 232 members of the general public in the UK. Between-participants univariate and multivariate analyses indicated attitude-behaviour and PBC-behaviour relationships to be weaker in higher ambivalence compared to lower ambivalence respondents. These effects were confirmed in within-participants analyses. The findings are discussed in terms of the role of ambivalence in furthering our understanding of relationships in the TPB.
authors.affiliation: School of Psychology, University of Leeds, UK.
authors.forename: Mark
authors.initials: M
authors.lastname: Conner
authors.forename: Rachel
authors.initials: R
authors.lastname: Povey
authors.forename: Paul
authors.initials: P
authors.lastname: Sparks
authors.forename: Rhiannon
authors.initials: R
authors.lastname: James
authors.forename: Richard
authors.initials: R
authors.lastname: Shepherd
mesh_terms: D000328:Adult; D001294:Attitude to Health; D004739:England; D005247:Feeding Behavior / Q000523:psychology*; D005260:Female; D006801:Humans; D007206:Individuality; D007389:Internal-External Control; D008297:Male; D009042:Motivation; D009749:Nutrition Surveys; D011446:Prospective Studies; D012925:Social Conformity