American Politics Commons^™

Because I Said So: A Functional Theory Analysis Of Evidence In Political Tv Spots, Jayne R. Henson, William L. Benoit

Speaker & Gavel

This study examines presidential general election television advertising (1952-2004), primary advertising (1952-2008), and non-presidential advertising from 2002 (gubernatorial, U.S. Senate, U.S. House) to understand the use of evidence (statements for which sources are provided) in such campaign messages. 8% of the themes in these spots were supported by evidence (that is, identified a source for a claim). However, the longitudinal presidential data suggests that evidence in advertising was rare until the 1990s, when Bill Clinton in particular employed a great deal of evidence in his spots. Although the appeals across all ads were mainly positive (70% of the themes in …