The processes that mediate the effectiveness of two-sided advertising were studied. We predicted that (a) two-sided (vs. one-sided) advertisements increase perceived source credibility and that (b) the logical relation between the negative and positive product attributes mentioned in the...

Recent work on frequency estimation has provided evidence that availability, as measured by recall, determines judgments of set size but not of frequency of occurence. The latter in turn rather reflect actual presentation frequencies (Manis, Shelder, Jonides, & Nelson, 1993). In contrast, the...