Collective versus individual induction: Recognition of truth, rejection of error, and collective information processing.
Patrick R. Laughlin, Scott W. VanderStoep, Andrea B. Hollingshead · Journal of Personality and Social Psychology · 1991
Four-person groups and 4 independent individuals solved rule induction problems under 4 levels of potential information. Groups performed at the level of the 2nd-best individuals for correct hypotheses (recognition of truth) and at the level of the best individuals for nonplausible hypotheses (rejection of error)