experimenter effect

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• Experimenter's bias — In experimental science, experimenter s bias is subjective bias towards a result expected by the human experimenter. David Sackett,[1] in a useful review of biases in clinical studies, states that biases can occur in any one of seven stages of… …   Wikipedia

• Experimenter's regress — In science, experimenter s regress refers to a loop of dependence between theory and evidence. In order to judge whether evidence is erroneous we must rely on theory based expectations, and to judge the value of competing theories we rely on… …   Wikipedia

• effect — The result or consequence of an action. [L. efficio, pp. effectus, to accomplish, fr. facio, to do] abscopal e. a reaction produced following irradiation but occurring outside the zone of actual radiation absorption. additive e. an e. wherein two …   Medical dictionary

• Hawthorne effect — The Hawthorne effect is a form of reactivity whereby subjects improve or modify an aspect of their behavior being experimentally measured simply in response to the fact that they know they are being studied,[1][2] not in response to any… …   Wikipedia

• Observer-expectancy effect — Participant observer effect redirects here. Psychology …   Wikipedia

• Bystander effect — The bystander effect (also known as bystander apathy, Genovese syndrome, diffused responsibility or bystander intervention) is a psychological phenomenon in which someone is less likely to intervene in an emergency situation when other people are …   Wikipedia

• Serial position effect — Graph showing the serial position effect. The vertical axis shows the percentage of words recalled; the horizontal axis shows their position in the sequence. The serial position effect, a term coined by Hermann Ebbinghaus through studies he… …   Wikipedia

• Pygmalion effect — The Pygmalion effect, Rosenthal effect, or more commonly known as the teacher expectancy effect refers to situations in which students perform better than other students simply because they are expected to do so. The Pygmalion effect requires a… …   Wikipedia

• Parapsychology — American psychologist and philosopher William James (1842–1910) was an early psychical researcher.[1] Part of a series of artic …   Wikipedia

• Dayton Miller — Dayton C. Miller Circa 1921 Born March 13, 1866( …   Wikipedia