Which of the following is an accurate example of threats to internal validity of experiments?

Question

Quizplus · Accepted Answer

Subjects dropping out of an experiment is a threat to internal validity because it can lead to a biased sample and potentially impact the accuracy of the results. Selecting a random sample, on the other hand, is a method of ensuring external validity, but it does not necessarily impact internal validity. Therefore, option C is incorrect. Option D, none of the above, is incorrect as well because at least one option, A, is a valid threat to internal validity.

Which of the Following Is an Accurate Example of Threats