Olabisi Is a Factory Worker in a Study of Productivity

Multiple Choice

Olabisi is a factory worker in a study of productivity. When the researcher increases the lighting near his group, Olabisi performs better, but he is also more productive when the lights are dimmed. The researcher realizes that workers like Olabisi change behavior when they know they are being observed. In other words this is an example of ______.

A) the Hawthorne effect
B) observer bias
C) confirmation bias
D) the Mayo effect