What effect can occur when subjects' behaviors are affected not by the treatment per se, but by their knowledge of participating in a study and the generalizability of the results is limited?

Question

Quizplus · Accepted Answer

The Hawthorne effect occurs when subjects' behaviors are influenced simply because they know they are being studied, not necessarily by the experimental treatment itself. This awareness can cause changes in behavior, complicating the interpretation of the study's results and limiting its generalizability.

What Effect Can Occur When Subjects' Behaviors Are Affected Not