Date of Award


Document Type


Degree Name

Master of Arts (MA)



First Advisor

Richard Nicholson

Second Advisor

William Jaynes

Third Advisor

Francis Hurst


Hovland, Janis, and Kelley (1953) distinguished between expertness and trustworthiness, two variables most relevant to communicator perception. They defined expertness as the extent to which a communicator is perceived to be a source of valid assertions and trustworthiness as the degree of confidence in the communicator's intent to communicate the assertions he considers most valid. They defined communicator credibility (degree of belief) as incorporating both expertness and trustworthiness but concluded that there was experimental confounding of both variables.


A Thesis Presented to the Department of Psychology and the Faculty of the Graduate College University of Nebraska In Partial Fulfillment of the Requirements for the Degree Master of Arts University of Nebraska at Omaha.

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