SOURCE V CONTENT EFFECTS ON JUDGMENTS OF NEWS BELIEVABILITY

A between-groups 3 x 3 factorial experiment (N=516) tests effects of message type and source reputation on judgments of news believability, judgments conceptualized as source credibility (judgments about the source), and assessments of apparent reality (judgments about the message content). Three indices combining measures of source credibility and message apparent reality emerge from a factor analysis, comprising judgments of (1) source truthfulness and message accuracy, (2) source expertise and message representativeness, and (3) source bias and personal perspective. The results show that a more innocuous message results in more positive judgments of believability, but the reputation of the source has no direct effect on believability judgments, nor does it interact with message type. It is concluded that at least some publics base judgments of news believability more on judgments of the apparent reality of message content rather than on the reputation of the media source.