Participants who know that they are being observed may modify their behavior. This problem is known as ____.
A) reactivity
B) novelty
C) experimenter bias
D) volunteerism

Question

Quizplus · Accepted Answer

Reactivity occurs when participants change their behavior because they know they are being observed. This can impact the validity of research results, as the observed behavior may not be representative of how the participant would act in their natural environment. The other options do not accurately describe this phenomenon.

Participants Who Know That They Are Being Observed May Modify