411 REFERENCE · Wiktionary
Campbell's law
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Developed by American psychologist and social scientist Donald T. Campbell.
Proper noun
The adage that "the more any quantitative social indicator is used for social decision-making, the more subject it will be to corruption pressures and the more apt it will be to distort and corrupt the social processes it is intended to monitor".
See also
en cobra effect
Category:English eponyms