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Source Credibility and Attitude Certainty: A Metacognitive Analysis of Resistance to Persuasion
Author(s) -
Tormala Zakary L.,
Petty Richard E.
Publication year - 2004
Publication title -
journal of consumer psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.433
H-Index - 110
eISSN - 1532-7663
pISSN - 1057-7408
DOI - 10.1207/s15327663jcp1404_11
Subject(s) - persuasion , certainty , psychology , credibility , source credibility , resistance (ecology) , metacognition , social psychology , attitude change , elaboration likelihood model , persuasive communication , cognition , epistemology , biology , ecology , philosophy , neuroscience
Recent research (Tormala & Petty, 2002) has demonstrated that when people resist persuasion, they can perceive this resistance and become more certain of their initial attitudes. This research explores the role of source credibility in determining when this effect occurs. In two experiments, participants received a counterattitudinal persuasive message. When participants counterargued this message, they became more certain of their attitudes, but only when it came from a source with high expertise. When the message came from a source with low expertise, resisting it had no impact on attitude certainty. This effect was shown using both a traditional measure of attitude certainty (Experiment 1) and a well‐established consequence of certainty—the correspondence between attitudes and behavioral intentions (Experiment 2). In addition, the effect was confined to high elaboration conditions, and occurred even when participants were not explicitly instructed to counterargue. These results are consistent with a metacognitive framework proposed to understand resistance to persuasion.