Sorry, no citation handy, and this might be semi-tangential (more "wisdom of he crowds" per se), but I recall a study that reviewed those "guess how many jellyb

Sorry, no citation handy, and this might be semi-tangential (more "wisdom of he crowds" per se), but I recall a study that reviewed those "guess how many jellybeans are in this jar" -type contests, in which the guesses' median value converged with the correct answer...