Daily Almanac for
Nov 30, 2009
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Haw'thorne effect"



Psychol.
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.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

HawthorneHawthornesque
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