Advantages of Group Problem Solving:
For many tasks, groups possess a greater collection of resources than do most individuals. Sometimes the resources are physical. For example, three or four people can put up a tent or dig a ditch better than a lone person. But on other problems the pooled resources lead to qualitatively better solutions. Think, for instance, about times when you have studied with other students for a test, and you will remember how much better the group was at preparing for all the questions that might be asked and at developing answers to them. (This, of course, assumes that the study group members cared enough about the exam to have studied for it before the group meeting.) Groups not only have more resources than individuals, but also through interaction among the members they are better able to mobilize them. Talking about an upcoming test with others can jog your memory about items you might not have thought of if you had been working alone.
Another benefit of group work is the increased likelihood of catching errors. At one time or another, we all make stupid mistakes, like the man who built a boat in his basement and then wasn’t able to get it out the door. Working in a group increases the chance that foolish errors like this won’t slip by. Sometimes, of course, errors aren’t so obvious, which makes groups even more valuable as an error-checking mechanism. Another side to the error-detecting story is the risk that group members will support each other in a bad idea. Commitment
Besides coming up with superior solutions, groups also generate a higher commitment to carrying them out. Members are most likely to accept solutions they have helped create, and they will work harder to carry out those solutions. This fact has led to the principle of participative decision making, in which the people who will live with a plan help make it. This is an especially important...