October 20 - October 20, 2010 Group Activities and...

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October 20, 2010 Group Activities and Decisions Ch. 12 is optional The Effect of the Presence of Others on Performance Does an audience help or hurt our actions? Ringelmann Effect Found on a “rope pull” task How hard is someone pulling the rope? Sometimes alone, sometimes in groups In a group of 3, the pull strength is only about 2x the avg. person, even though expectation is that it should be 3x. Explanations Coordination loss Motivation loss (Social Loafing) – less likely when inputs are monitored, task is interesting or group is valued. Other Effects Social facilitation – give people an audience to improve their behavior (makes people accountable). Social inhibition – choking under pressure Zajonc – 1965 – Dominant Response Presence of others is arousing/activates a drive Drive increases dominant (familiar, automatic) response
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October 20 - October 20, 2010 Group Activities and...

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