• The largest factor in predicting group intelligence was the equality of conversational turn taking; groups where a few people dominated the conversation were less collectively intelligent than those with a more equal distribution of conversational turn taking.

    Alex Pentland: The largest factor in predicting group intelligence was the equality of conversational turn taking; groups where a few people dominated the conversation were less collectively intelligent than those with a more equal distribution of conversational turn taking.
    "Social Physics: How Social Networks Can Make Us Smarter". Book by Alex Pentland, January 30, 2014.