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British Dictionary definitions for experimenter effect

experimenter effect

noun
  1. psychol the influence of an experimenter's expectations on his results
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

experimenter effect in Medicine

experimenter effect

n.
  1. The influence of the experimenter's behavior, personality traits, or expectancies on the results of his or her own research.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.