To examine sex differences in persuasiveness, we conducted a meta-analysis of seven studies from our laboratory on reactions to human versus computer-synthesized speech. We tested three hypotheses: (1) people would be more persuaded by human speech than by computer-synthesized speech, (2) women would be slightly more persuaded than men, and (3) the sex difference would be more pronounced for human speech than for synthetic speech. While there was support for the first two hypotheses, there was none for the third. Also, no consistent support was found for a moderating effect of mode of presentation, audio versus video.
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