HUMAN MOTIVATION is incredibly complex. Attempts to tweek with it are invariably mis-directed. Esther Inglis-Arkell's article at io9, "The lasting mystery of the Hawthorne Effect" is worthy of attention.
The Hawthorne Effect is cited by both business experts and psychology experts, but rarely in the same way. Some say it's real, some that it's real but misinterpreted, and then others that it doesn't exist and never has. It all started with an attempt to increase productivity at a factory in the 1920s, and we've been arguing about it ever since.
The story of the Hawthorne Effect begins in the 1920s, when productivity studies began at the Hawthorne Works electrical equipment factory in Illinois. They continued for the better part of a decade, with investigators tweaking nearly every aspect of working life.
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