Last Updated Aug 6, 2009 1:54 PM EDT
But the research quickly uncovered a paradox. When illumination was increased, productivity went up. But when the light was decreased, even down to the level of moonlight, productivity increased again.
What was going on here?
The answers changed the direction of both sociological and management research. At its highest level the Hawthorne Effect is simply a recognition that if you are observed, your behavior will change. (Researchers still debate whether this focused attention leads to productivity increases, however).
But the studies were also one of the first times that workers were viewed as part of a larger social system, not just as unfeeling automatons. This research has led modern-day companies to look less for ways to control employees and more at methods of unleashing their creativity.
The BBC recently did a report on the Hawthorne Studies, including a visit to Harvard Business School, where many of the original research materials are stored. ( Harvard Business School researchers Elton Mayo and Fritz Roethlisberger were instrumental in the research.)
Listen to the report, The Hawthorne Effect.
How important is the social system at work to your own productivity?