Harold Sigall

TL;DR: In this paper, the authors investigated the relationship between physical attractiveness and liking in a 2 × 2 factorial design and found that the attractive evaluator who was positive was liked most, while the unattractive evaluators who presented a negative evaluation was liked least.

TL;DR: The authors found that the greatest amount of agreement with the communicator would be produced by a communicator who had previously expressed a gain in esteem for the recipient, followed by invariate negative esteem, with loss in esteem producing the least agreement.

TL;DR: In this article, an experiment investigating the effects of audience stress and communicator credibility on opinion change was conducted, and it was predicted that differences in credibility would lead to differences in opinion change under low stress, and that under high stress opinion change would not be affected significantly by differences in communicators credibility.

TL;DR: In this paper, the authors measured the level of aspiration of two people in two two-person competitive situations and used an expectancy model to predict that Ss who lost, but whose performance improved would have a higher level of aspirations than their competitors.