After watching a few minutes of a new sit-com, Will determined that the comedians on the show were not particularly funny and that watching was a waste of his time. By classifying the comedians as unfunny, Will demonstrates the use of . Group of answer choices

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.        

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )

answer; exploratory;

answer; /// the above statement is ( true);