Psychology 2990A/B Lecture 5: Lecture005 – Chapter 4.docx

• School: Western University
• Department: Psychology
• Course: Psychology 2990A/B
• Professor: Doug Hazlewood

Document Summary

But, sometimes the presence of others inhibits performance (class tasks (simple math problems, learning word associations, naming presentation: zajonc (1995) and the yerkes dodson law (cid:224) physiological arousal facilitates the dominant response . Dominant reponse is most likely response: on easy tasks (that are well learned), dominant response is correct arousal should facilitate performance, on difficult tasks, (not well learned) dominant response is incorrect arousal should inhibit performance the presence of others is a source of arousal: should facilitate performance on easy tasks and inhibit performance on difficult tasks, (cid:224) the social facilitation effect. Additive task: group"s achievement depends on the sum of individual: e. g. , a tug of war team: group"s achievement (how hard group pulls) depends on sum of individual contributions (how hard each individual pulls, 8 people will exert 8 times as much pull on the rope as a single individual.