The Persuasive Effects of Metaphor a Meta-Analysis

Pradeep Sopory, James Price Dillard

Research output: Contribution to journalReview article

139 Citations (Scopus)

Abstract

Empirical investigations of metaphor's persuasive effects have produced mixed results. In an effort to integrate the literature, we present a review and meta-analytic summary of existing studies. Six explanations for the potential suasory advantage of metaphor over literal language were reviewed: (a) pleasure or relief, (b) communicator credibility, (c) reduced counterarguments, (d) resource-matching, (e) stimulated elaboration, and (f) superior organization. Next, a meta-analysis was conducted and the impact of seven moderator variables was tested. The overall effect for the metaphor-literal comparison for attitude change was r = .07, which supported the claim that metaphors enhance persuasion. The effect rose to r = .42 under optimal conditions, when a single, nonextended metaphor was novel, had a familiar target, and was used early in a message. Metaphor appeared to exert a small effect on perceptions of source dynamism (r = .06), but showed no demonstrable impact on competence (r = -.01) or character (r = -.02). Of the six theories considered, the superior organization explanation of metaphor's persuasive impact was most supported by the results.

Original languageEnglish (US)
Pages (from-to)382-419
Number of pages38
JournalHuman Communication Research
Volume28
Issue number3
DOIs
StatePublished - Jul 1 2002

Fingerprint

Metaphor
Meta-Analysis
metaphor
Moderators
Organizations
Epidemiologic Effect Modifiers
Persuasive Communication
organization
Pleasure
communicator
attitude change
dynamism
persuasion
moderator
Mental Competency
credibility
Language
language
resources

All Science Journal Classification (ASJC) codes

  • Communication
  • Developmental and Educational Psychology
  • Anthropology
  • Linguistics and Language

Cite this

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The Persuasive Effects of Metaphor a Meta-Analysis. / Sopory, Pradeep; Dillard, James Price.

In: Human Communication Research, Vol. 28, No. 3, 01.07.2002, p. 382-419.

Research output: Contribution to journalReview article

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AB - Empirical investigations of metaphor's persuasive effects have produced mixed results. In an effort to integrate the literature, we present a review and meta-analytic summary of existing studies. Six explanations for the potential suasory advantage of metaphor over literal language were reviewed: (a) pleasure or relief, (b) communicator credibility, (c) reduced counterarguments, (d) resource-matching, (e) stimulated elaboration, and (f) superior organization. Next, a meta-analysis was conducted and the impact of seven moderator variables was tested. The overall effect for the metaphor-literal comparison for attitude change was r = .07, which supported the claim that metaphors enhance persuasion. The effect rose to r = .42 under optimal conditions, when a single, nonextended metaphor was novel, had a familiar target, and was used early in a message. Metaphor appeared to exert a small effect on perceptions of source dynamism (r = .06), but showed no demonstrable impact on competence (r = -.01) or character (r = -.02). Of the six theories considered, the superior organization explanation of metaphor's persuasive impact was most supported by the results.

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