Date of Award

Fall 1979

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Psychology

Program/Concentration

Psychology

Committee Director

Thomas F. Cash

Committee Member

Wallace Wilkins

Committee Member

Raymond Kirby

Call Number for Print

Special Collections LD4331.P65E86

Abstract

Thirty-eight snake phobic subjects were given one session of either participant modeling, an initially equally credible placebo treatment, or experienced a no-treatment control condition. Both the subjects in the participant modeling and placebo treatments showed significant changes on both behavioral and self-report indices, with the participant modeling subjects evidencing significantly greater improvement across conditions. Between group differences were not obtained at a four week follow-up, possibly as a result of shortness of treatment and differential attrition. Although initially equal across treatments, credibility increased significantly for the participant modeling group and stayed virtually the same for the placebo group. Differential concepts of credibility are postulated, with the observed increase in credibility attributed to self-observed behavior change for recipients of participant modeling. Participant modeling also produced higher and stronger levels of perceived self-efficacy.

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DOI

10.25777/qsmr-2k27

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