You are a psychologist interested in how groups behave. you study groups in the laboratory, at the workplace, and in informal settings. most likely, you are a psychologist.

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.