In West Germany the `information disaster' after Chernobyl offered an opportunity to study the credibility of different information sources. A representative survey conducted in May 1987 of the West German population showed that on average the Federal Government—although heavily criticized because of its information policy and risk management—was rated most credible while the nuclear industry was judged least credible. On the whole, mean credibility ratings differed surprisingly little between sources; ratings of competence and public interest orientation varied more. These variables, interpreted as the classical credibility factors `expertise' and `trustworthiness', were important predictors of credibility. But beliefs and expectations recipients posess about individual sources also appear to influence credibility.
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