1970
DOI: 10.2466/pms.1970.31.1.159
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Experimenter Bias: Reaction Time and Types of Expectancy Information

Abstract: Each of 9 Es received general (personality and intelligence), specific (expected performance), or no information about 136 Ss. All information was fabricated. Ss' reaction time (RT) and photo-ratings were used to assess E-expectancy effects. Contrary to the findings of other investigators, Ss' photo-ratings were not significantly influenced by the specific expectancy of E, but their RTs were. Ss' photo-ratings and RTs were not significantly influenced by Es who received general information about their Ss.

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Cited by 5 publications
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“…The generality of experimenter bias has been questioned by several writers (Barber & Silver, 1968;Compton, 1970;Stewart, 1971). Discussions of the generality of the effects have emphasized the inconsistency of the phenomena, the unrepresentative nature of the experimenters employed, and the limited range of experimental tasks and situations that have been studied.…”
Section: Discussionmentioning
confidence: 99%
“…The generality of experimenter bias has been questioned by several writers (Barber & Silver, 1968;Compton, 1970;Stewart, 1971). Discussions of the generality of the effects have emphasized the inconsistency of the phenomena, the unrepresentative nature of the experimenters employed, and the limited range of experimental tasks and situations that have been studied.…”
Section: Discussionmentioning
confidence: 99%