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  • Oct 17, 2014
  • Updated: 9:30pm
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RESEARCH

Research shows that peer pressure drives social behaviour

PUBLISHED : Thursday, 20 June, 2013, 12:00am
UPDATED : Wednesday, 19 June, 2013, 10:26pm
 

If you have just seen a play that you think is drivel, would you keep silent when everyone around you demands an encore?

Possibly not, according to research published in the Journal of the Royal Society Interface.

Combining a psychological experiment and mathematical analysis, the research marked a scientific attempt to quantify the fuzzy notion of "social contagion" - how individual behaviour is influenced by group dynamics.

Mathematician Richard Mann of Sweden's Uppsala University and colleagues videotaped groups of university students as they responded to a seven-minute PowerPoint presentation on a biological study.

Neither the students nor presenters knew the applause was being analysed.

Mann and his team broke the applause down into mathematical models. The results were revealing. "People in the audience didn't make an independent choice about how good the talk was and then clap an appropriate number of times," Mann said.

"Instead, they responded very predictably to the social pressure around them, which we believe they felt through the volume of clapping in the room."

As more people started clapping, each individual who hadn't started felt more pressure to join in, the statistics showed. "Likewise, once people began to stop clapping there was increasing pressure for everyone to stop."

Mann said the results showed that group behaviour was reflected in patterns, and this knowledge had a range of uses.

"Just like we measure how influenza is spreading each year, we can also measure and predict how social unrest or new fashions might spread," Mann said.

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