Which effects occur when environmental events other than the treatment influence the participants' scores in one treatment differently than in another treatment?
A)subject selection bias
B)volunteerism
C)fatigue
D)history

Question

Which effects occur when environmental events other than the treatment influence the participants' scores in one treatment differently than in another treatment?
A)​subject selection bias
B)​volunteerism
C)fatigue
D)​history

Quizplus · Accepted Answer

This is referred to as "history" in experimental design and occurs when external events or factors influence the participants' scores in one treatment differently than in another treatment. For example, if a study is conducted during a period of time when there is significant media attention or a major event happening in the world, this could potentially influence how participants respond to treatment.

Which Effects Occur When Environmental Events Other Than the Treatment