Extending the theory of planned behavior: A review and avenues for further research

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    Abstract

    This paper describes and reviews the theory of planned behavior (TPB). The focus is on evidence supporting the further extension of the TPB in various ways. Empirical and theoretical evidence to support the addition of 6 variables to the TPB is reviewed: belief salience measures, past behavior/habit, perceived behavioral control (PBC) vs. self-efficacy, moral norms, self-identity, and affective beliefs. In each case there appears to be growing empirical evidence to support their addition to the TPB and some understanding of the processes by which they may be related to other TPB variables, intentions, and behavior. Two avenues for expansion of the TPB are presented. First, the possibility of incorporating the TPB into a dual-process model of attitude-behavior relationships is reviewed. Second, the expansion of the TPB to include consideration of the volitional processes determining how goal intentions may lead to goal achievement is discussed. Copyright © 1998 by V. H. Winston & Son, Inc. All rights reserved.
    Original languageEnglish
    Pages (from-to)1429-1464
    Number of pages35
    JournalJournal of Applied Social Psychology
    Volume28
    Issue number15
    Publication statusPublished - 1 Aug 1998

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