experimenter effects

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ex·per·i·ment·er ef·fects

the influence of the experimenter's behavior, personality traits, or expectancies on the results of that person's own research. See: double-blind study.

Farlex Partner Medical Dictionary © Farlex 2012

ex·per·i·ment·er ef·fects

(eks-per'i-men'tĕr e-fekts')

The influence of the experimenter's behavior, personality traits, or expectancies on the results of that person's own research.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive ?

There may have been a unique experimenter effect in the individual ("non-market") setting.

Morals and markets: a response

Through a better understanding of these experimenter effects, we will be able to make meaningful comparisons of results across studies that have employed different experimenters in differing laboratory contexts.

Experimenter effects on cardiovascular reactivity and task performance during mental stress testing

Experimenter effects and the remote detection of staring.

Of two minds: sceptic-proponent collaboration within parapsychology

Nevertheless, although I do not believe that skeptics will inevitably fail to find evidence of psi in any experiment they conduct, it also seems obvious that the experimenter can have an effect upon the beliefs, expectations, and behaviour of the participant in ways that affect the outcome, such that it is rather surprising that commentators are suspicious of experimenter effects. I discussed this in some depth in a recent Minefield article (Roe, 2016b) and found that such effects should be expected given the social dynamic interaction between experimenter and participant that affords an opportunity for all sorts of implicit information to be communicated.

PA Presidential Address 2017: Withering Skepticism/Adresse Presidentielle PA 2017: Le scepticisme fletrissant/PA-Prasidentenansprache 2017: Vernichtender Skeptizismus/Ponencia Presidencial de la PA, 2017: Escepticismo marchito

The present study provided an opportunity to explore gender- and interaction-based psychosocial dimensions of experimenter effects in the context of a nonintentional psi paradigm.

The effects of experimenter-participant interaction qualities in a goal-oriented nonintentional precognition task/Los efectos de las cualidades de interaccion experimentador-participante en una tarea de precognicion no intencional orientada a un objetivo/Les effets des qualites de l'interaction experimantateur-participant dans une tache de precognition non-intentionnelle orientee par un but ..

Palmer notes but does not fully develop the substantial likelihood of experimenter effects in the PMIR studies.

Parapsychology: A Handbook for the 21st Century

On the topic of experimenter effects, and experimenters who get exceptional results, probably few compare to the author of the next chapter: Rupert Sheldrake, a biologist, and a fellow of Clare College, Cambridge.

Evidence for Psi: Thirteen Empirical Research Reports

There is an additional striking example of the apparent contradictory findings, perhaps due to experimenter effects, concerning the phenomenology of hypnosis.

The jungle of hypnotic psi: part 1. Research on hypnosis relevant to psi/La jungle du psi hypnotique: premiere partie. La recherche sur l'hypnose pertinente pour le psi/Der dschungel des hypnotischen psi: teil i. Psi-relevante forschung zur hypnose/La selva hipnotica de psi: parte 1. Investigacion en hipnosis pertinente a psi

Despite Rhine's awareness of the role of experimenter psi, the initial research effort on experimenter effects was to try to attribute success as an experimenter in parapsychology to the possession of interpersonal skills.

Revealing psi secrets: successful experimenters seem to succeed by using their own psi/ Die enthullung von psi-geheimnissen: der erfolg erfolgreicher experimentatoren scfieint sich ihrem eigenen psi zu verdanken/Develando los secretos de psi: los experimentadores con exito usan su propio psi/Reveler les secrets du psi: les experimentateurs a succes semblent employer leur propre psi

In addition to his critique of Kanthamani and Broughton (1994) and Willin (1996a), Wiseman (2010a) briefly mentions experimenter effects: "Perhaps the most far-reaching version of this 'get out of a null effect free' card involves an appeal to the 'experimenter effect,' wherein any negative findings are attributed to the psi- inhibitory nature of the parapsychologist running the study" (p.

Beyond the coin toss: examining Wiseman's criticisms of parapsychology/ Jenseits des munzenwurfs: eine nachprufung von Wisemans kritik an der parapsychologie/ Mas alla de lanzar una moneda : un examen de la critica a la parapsicologia de Wiseman/ Au-dela du pile ou face : examen des critiques de la parapsychologie par Wiseman

Any unexpected effects on the control trials would presumably indicate experimenter effects of some type rather than precognitive anticipation by the participant.

Methodology for confirmatory experiments on physiological measures of precognitive anticipation/Metodologia para experimentos confirmatorios sobre medidas fisiologicas de anticipacion precognitiva/Methodologie pour les experimentations confirmatoires sur les mesures physiologiques d'anticipation precognitive/Eine methodologie fur bestatigungsexperimente von physiologischen messungen zur prakognitiven antizipation

Experimenter effects are one of the greatest challenges for parapsychology and should have a central place in any discussion of evidence for psi.

Can parapsychology move beyond the controversies of retrospective meta-analyses?/Est-ce que la parapsychologie peut sortir des controverses sur les meta-analyses retrospectives?/?Puede la parapsicologia superar las controversias de los metanalisis retrospectivos?/Kann die parapsychologie die kontroversen um retrospektive metaanalysen uberwinden?