Source memory for advertisements: The role of advertising message credibility.

While the trustworthy source was better remembered than the unspecified source for both statements with high a priori credibility, Δ G 2 (1) = 21.78, p < .01, as well as statements with low a priori credibility, Δ G 2 (1) = 14.41, p < .01, there was only a numerical trend for untrustworthy sources to be better remembered than the unspecified source, but this trend was neither significant for statements with high a priori credibility, Δ G 2 (1) = 0.79, p = .38, nor for statements with low a priori credibility, Δ G 2 (1) = 2.17, p = .14.

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