According to your textbook, the best approach to brainstorming in a small group is for each member to write down her or his ideas before sharing them with the group.

The question is answered by true or false. The answer here is true. Group members have to reason and note down their reply to the question or about the group conversation. This thinking process, even it only occupy several minutes, this gives the participants a chance to gather their ideas before partaking it to the group. Writing the ideas down specifies to the participant that his or her notion was significant and backed to the discussion and group knowledge.

answer; i believe that the correct answer is (decreased)

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.