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The Theory of Planned Behavior, Descriptive Norms, and the Moderating Role of Group Identification
Author(s) -
Norman Paul,
Clark Tom,
Walker Gary
Publication year - 2005
Publication title -
journal of applied social psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 111
eISSN - 1559-1816
pISSN - 0021-9029
DOI - 10.1111/j.1559-1816.2005.tb02157.x
Subject(s) - psychology , theory of planned behavior , social psychology , vignette , normative , descriptive statistics , normative social influence , identification (biology) , control (management) , botany , management , biology , economics , philosophy , statistics , mathematics , epistemology
The present paper assesses (a) the predictive utility of expanding the normative component of the theory of planned behavior (TPB) to include a measure of descriptive norms, and (b) the moderating role of group identification on TPB‐intention relations. In Study 1 ( N= 48), male soccer fans read a vignette describing a potential confrontation with opposition fans. In Study 2 ( N = 129), male field‐hockey players read a vignette describing an aggressive act against an opponent to prevent a goal. The TPB was a strong predictor of intentions ( R 2 s= .80 and .64). The addition of descriptive norms increased the amount of variance explained in both studies. Little evidence was found to support the moderating role of group identification on TPB‐intention relations. The discussion focuses on the distinction between attitudinal and behavioral descriptive norms, the group as an external facilitating control factor, and the impact of individuals’ self‐ and social identities.