摘要：For recipients of mass media; the credibility of sources is particularly important to evaluate represented scientific knowledge. In addition to sources that appear on screen in science TV programs; the off-camera speaker is also one of the typical sources of information providing arguments of evidence for scientific knowledge. In such programs; journalists can arrange multiple argumentations from various sources; either one-sided or controversial; this could; in turn; affect the perceived source’s credibility. In this experiment (N = 120); participants were exposed to manipulated TV-clips about a nanotherapy. The degree of credibility attributed to the off-camera speaker; in comparison to other information sources (such as an expert and an exemplar); and how these attributions differ between one-sided and controversial TV-clips were investigated. The results show that the expert; as a visual source; gained the highest credibility; if the off-camera speaker’s argumentation is controversial compared to the other sources; the recipients’ perception of the reliability of the exemplar increased.
关键词：Off-Sprecher; Glaubwürdigkeit; Nanomedizin; Wissenschaftskommunikation; Informationsquellen; TV
