What effect suggests that group members change their behavior due to being observed?

• A. The Dunning-Kruger Effect
• B. The placebo effect
• C. The Hawthorne Effect
• D. The feedback effect

Answer: (C)

The Hawthorne Effect refers to the phenomenon in which individuals modify their behavior in response to being aware that they are being observed. This effect was first identified during studies conducted at the Hawthorne Works factory in the 1920s, where researchers found that workers improved their productivity when they knew they were part of an experiment, regardless of the actual changes in working conditions. This highlights how the mere observation of behavior can lead to changes, as individuals often strive to present themselves in a favorable light or to conform to perceived expectations.

Understanding the Hawthorne Effect is crucial in counseling and group therapy settings, as it emphasizes the importance of creating an environment where clients feel comfortable and unobserved, enabling more genuine expressions of thoughts and feelings. It is a vital concept in understanding human behavior within social settings and the impact that perception and awareness of observation can have on an individual's actions.