Justification Explicitness and Persuasive Effect: A Meta-Analytic Review of the Effects of Varying Support Articulation in Persuasive Messages

Daniel J. O'Keefe*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

This meta-analytic review discusses research evidence concerning the persuasive effects of three variations in the articulation of an advocate's supporting argumentation. Greater explicitness in identification of the sources of information and in the completeness of an argument significantly enhance persuasive effectiveness and perceived credibility; greater quantitative specificity has no significant effect on these outcomes.

Original languageEnglish (US)
Pages (from-to)61-75
Number of pages15
JournalArgumentation and Advocacy
Volume35
Issue number2
DOIs
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Communication

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