Wikia

Psychology Wiki

Observer bias

Talk0
34,139pages on
this wiki

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Statistics: Scientific method · Research methods · Experimental design · Undergraduate statistics courses · Statistical tests · Game theory · Decision theory


The observer effect refers to several things in different situations, though there are similarities.

Use in scienceEdit

In science, the observer effect refers to changes that the act of observing has on the phenomenon being.

affect the current or the voltage they are measuring. Likewise, a standard mercury-in-glass thermometer must absorb some thermal energy to record a temperature, and therefore changes the temperature of the body which it is measuring.


prepared they generally are.

In parapsychology, the observer effect refers to the phenomenon that when the person performing the tests (the phrase was coined by two friends performing an experiment wherein they set up a number of volunteers who had to press the button when they felt they were being watched by the experimenters) expects to get positive results, he does, and likewise when he expects negatives.

Observer biasEdit

The related social-science term observer bias is error introduced into measurement when observers overemphasize behavior they expect to find and fail to notice behavior they do not expect. This is why medical trials are normally double-blind rather than single-blind. Observer bias can also be introduced because researchers see a behavior and interpret it according to what it means to them, whereas it may mean something else to the person showing the behavior. See subject-expectancy effect and observer-expectancy effect.

See alsoEdit

References & BibliographyEdit

Key textsEdit

BooksEdit

PapersEdit

Additional materialEdit

BooksEdit

PapersEdit

External linksEdit


This page uses Creative Commons Licensed content from Wikipedia (view authors).

Around Wikia's network

Random Wiki