When a group being studied and knows they are under study change their behavior from what is routine, this is called the: Group of answer choices Placebo effect Hawthorne effect Rogers effect Sham effect
The correct answer and explanation is:
The correct answer is Hawthorne effect.
The Hawthorne effect refers to a phenomenon where individuals modify or improve their behavior when they know they are being observed. This effect was first observed during a series of studies conducted at the Western Electric Hawthorne Works in Chicago during the 1920s and 1930s. The original studies aimed to examine the impact of different working conditions (like lighting, rest breaks, and working hours) on worker productivity.
However, the researchers found that no matter the changes in conditions, productivity seemed to improve simply because workers were aware they were being studied. The workers altered their behavior because they felt special or noticed, leading to a temporary boost in performance. This effect suggests that human behavior can be influenced not just by external conditions but also by the awareness of being observed.
The Hawthorne effect has important implications for research, particularly in social sciences and psychology, where understanding how observation might impact the results is crucial. It can lead to biases in experimental results because participants may not behave in their usual manner, which could distort the findings. This effect highlights the difficulty in obtaining objective data when participants know they are part of an experiment.
In contrast, other terms like the placebo effect involve individuals believing they are receiving treatment, leading them to experience perceived improvements due to their expectations. The Rogers effect and sham effect do not refer to phenomena related to observation and behavior changes in the same way the Hawthorne effect does. The Hawthorne effect emphasizes the influence of observation on behavior, not external treatment or fake conditions.