Are two heads usually better than one？ If you had a difficult problem tosolve, would you b

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.______

As a general rule, though, group performance in problem-solving situations is

more qualitatively and quantitatively superior to the performance of the average S10.______

individual working alone. There are a number of reasons groups are generally

better at problem solving than individuals.

【S1】