experimenter effect


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Related to experimenter effect: single blind study

experimenter effect

n.
The influence of the experimenter's behavior, personality traits, or expectancies on the results of his or her own research.
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Experimenter effects and similarity to the individual setting
An experimenter effect on place avoidance learning of selectively-bred taste-aversion prone and resistant rats.
Hyman would still maintain there is something weird afoot in the form of the experimenter effect, and he may just be right.
The answer was positive, but no firm conclusions about the cause of the effect could be drawn, as it was not clear whether the induction per se or the difference in hypnotic abilities or even an experimenter effect might have caused the differences in performance.
As for Doyen's proposal that Bargh's team subtly prompted responses from volunteers, Bargh dismisses it: "We went out of our way to control for experimenter effects in our 1996 studies.