When subjects act differently because they are aware that they are in an experiment,this is called the:
A)history effect
B)Hawthorne effect
C)maturation effect
D)repeated measures effect

Question

Quizplus · Accepted Answer

The Hawthorne effect refers to the phenomenon where subjects alter their behavior because they are being observed or they know they are part of an experiment. This effect is named after the Hawthorne works factory where the original study was conducted. History effect refers to any external event that occurs during an experiment that can influence the results. Maturation effect refers to changes that occur naturally over time in subjects, and repeated measure effect refers to potential bias that can occur in studies where subjects are measured multiple times.

When Subjects Act Differently Because They Are Aware That They