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→Group intelligence
==Group intelligence==
A way to measure group intelligence<ref>[http://www.sebbm.es/archivos_tinymce/woolley2010.pdf Woolley, Anita Williams, et al. "Evidence for a collective intelligence factor in the performance of human groups." science 330.6004 (2010): 686-688].</ref>
'''Decision accuracy in complex environments is often maximized by small group sizes'''<ref>[http://rspb.royalsocietypublishing.org/content/281/1784/20133305 Albert B. Kao, Iain D. Couzin (2014) Decision accuracy in complex environments is often maximized by small group sizes, Proceedings B - Royal Soceity]</ref>
contrary to popular belief, small groups with access to many sources of information tend to make the best decisions.
That’s because the individual decisions that make up the consensus are based on two types of environmental cue: those to which the entire group are exposed – known as high-correlation cues – and those that only some individuals see, or low-correlation cues. Couzin found that in larger groups, the information known by all members drowns out that which only a few individuals noticed. So if the widely known information is unreliable, larger groups make poor decisions. Smaller groups, on the other hand, still make good decisions because they rely on a greater diversity of information
==Wisdom of thr Multitiude and Deliberation==