Group thinking has been a popular topic in behavioral research for a long time, particularly so in the last couple of decades. The judgment of one person can be called into question for a hundred different reasons – everything from preexisting beliefs to confirmation bias and beyond.
But if you add another mind to the mix, then theoretically a buffer against some of those biases has been introduced, and better judgments should result.
Or so the theory goes.
A recent study published in the journal Psychological Science flips this idea on its head by asking if two people may actually produce worse judgments, not because together they aren’t capable of making a good decision – but precisely because they are so confident that they can.
Read the whole story: Forbes