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. 2019
Word Origin for Hawthorne effect
from the Western Electric Company's Hawthorne works in Chicago, USA, where it was discovered during experiments in the 1920s
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012