Are two heads usually better than one? If you had a difficult problem to solve, would you be better working on the problem alone or working on it as S1.______ part of a group? Years of research has yielded a consistent pattern of findings shows that groups typically produce more, and produce better solutions to S2.______ problems than the same number as individuals working alone. For instance, a S3.______ classic experiment by Shaw had groups or individual subjects attempted to S4.______ solve problems involving conceptual and mathematical skill. In every case, S5.______ the groups produced more correct solutions than the individuals. However, it was one important warning to the finding of group superiority: S6.______ the groups were considerably less efficient, when time considered, than the S7.______ individuals were. In other words, although groups produced more correct solutions, but they did so at a cost of more time. In fact, much subsequent S8.______ research has suggested that the advantage of groups in solving problems can be outweighed unless efficiency in terms of time per person is a major criterion. S9.______
A.______ part B.______ problems C.______ classic D.______ solve E.______ the F. G.______ the H.______ individuals I.______ research J.______ As K.______ individual L. 【S1】