Is sexy better than funny? Disentangling the persuasive effects of pleasure and arousal across sex and humour appeals

Although it is well known that sex and humour can help sell products, hardly any research has examined whether there is something particular about sexual advertisements that makes them more persuasive than other appeals. The present research proposed an empirically robust way to test the persuasiveness of different emotional appeals (sex, humour, control) by matching them on pleasure and arousal levels. Two experiments (N = 162; N = 301) examined the combined persuasive effects of different levels of pleasure (moderate, high) and arousal (moderate, high) for sexual and nonsexual appeals. Study 1 used a 3 (appeal: sexual, humorous, control) x 2 (pleasure level: moderate, high) between-subjects design. Study 2 employed a 2 (appeal: sexual, control) x 2 (arousal level: moderate, high) x 2 (pleasure level: moderate, high) design. The main dependent measures were attitudes towards the ad, attitudes towards the brand, and purchase intentions. The results showed that highly pleasant ads increased persuasion regardless of arousal and content, and that sexual appeals outperformed nonsexual appeals only under conditions of moderate pleasure and high arousal.