Selection bias is when subjects develop or change during the experiment as part of an ongoing process independent of the experimental treatment.

Question

Quizplus · Accepted Answer

Selection bias is actually a bias that occurs when the selection of subjects is not random, leading to a sample that is not representative of the population being studied. The statement in the question is actually describing a different type of bias known as maturation bias.

Selection Bias Is When Subjects Develop or Change During the Experiment