- a positive change in the performance of a group of persons taking part in an experiment or study due to their perception of being singled out for special consideration.
Origin of Hawthorne effect
First recorded in 1960–65; after the Hawthorne Works of the Western Electric Company, Cicero, Ill., where such an effect was observed in experiments
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
from the Western Electric Company's Hawthorne works in Chicago, USA, where it was discovered during experiments in the 1920s