____________ is a threat to internal validity due to subjects quitting the experiment before the conclusion of the experiment.

Question

Quizplus · Accepted Answer

Experimental mortality, also known as subject attrition, occurs when subjects drop out of an experiment prematurely, which can threaten the internal validity of the study. It can lead to biased results if the subjects who drop out are different from those who complete the study, causing the results to no longer be representative of the original sample.

____________ Is a Threat to Internal Validity Due to Subjects