Monogamy is defined as
a. only having one sex partner at a time
b. practicing extreme abstinence
c. not using schedule iv drugs
d. recognizing dangerous behaviors

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.        

answer; posthypnotic;