The alteration of behavior by the subjects of a study due to their awareness of being observed.
- As in any observational study, the Hawthorne effect is a possibility.
- This observation suggests that the act of monitoring produces benefits beyond the so-called Hawthorne effect.
- The modest improvement we observed is probably explained by a Hawthorne effect.
1960s: from Hawthorne, the name of one of the Western Electric Company's plants in Chicago, where the phenomenon was first observed in the 1920s.
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