Adolescents show collective intelligence which can be driven by a geometric mean rule of thumb

  title={Adolescents show collective intelligence which can be driven by a geometric mean rule of thumb},
  author={Christos C. Ioannou and Gabriel Madirolas and Faith S. Brammer and Hannah A. Rapley and Gonzalo G. de Polavieja},
  journal={PLoS ONE},
How effective groups are in making decisions is a long-standing question in studying human and animal behaviour. Despite the limited social and cognitive abilities of younger people, skills which are often required for collective intelligence, studies of group performance have been limited to adults. Using a simple task of estimating the number of sweets in jars, we show in two experiments that adolescents at least as young as 11 years old improve their estimation accuracy after a period of… 

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