imported>Citizenofinfinity: /* See also */ Added wikilink for "Anthropic principle", which is aka "observation selection effect" and somewhat relevant to a page dedicated to "observation effect"

2025-10-24T06:20:47Z

See also: Added wikilink for "Anthropic principle", which is aka "observation selection effect" and somewhat relevant to a page dedicated to "observation effect"

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	'''Observer effect''', '''observer bias''', '''observation effect''', or '''observation bias''' may refer to a number of concepts, some of them closely related:		'''Observer effect''', '''observer bias''', '''observation effect''', or '''observation bias''' may refer to a number of concepts, some of them closely related:
	{{TOC right}}		{{TOC right}}
	== ~~General experimental biases~~ ==		== Common uses ==
	* [[Hawthorne effect]], a ~~form~~ of reactivity in which ~~subjects~~ modify an aspect of their behavior, in response to their ~~knowing that they are~~ being ~~studied~~		* [[Hawthorne effect]], a type of human behavior reactivity in which individuals modify an aspect of their behavior in response to their awareness of being observed
	* [[~~Observer-expectancy effect~~]], a ~~form of reactivity in which a researcher's cognitive bias causes them~~ to ~~unconsciously influence the participants of an experiment~~		* [[Heisenbug]], a software bug that seems to disappear or alter its behavior when one attempts to study it
	* [[~~Observer bias~~]], a ~~detection bias in research studies resulting for example from~~ an observer'~~s cognitive biases~~		* [[Laws of Form]], a mathematical calculus between the distinction that an observer draws and the implied decision what not to observe, also described as ''observer dilemma''
	* [[Observer~~'s paradox~~]], ~~a situation in which~~ the ~~phenomenon being observed~~ is ~~unwittingly influenced by~~ the ~~presence~~ of ~~the observer.~~		* [[Observer bias]], one of the types of detection bias and is defined as any kind of systematic divergence from accurate facts during observation and the recording of data and information in studies
			* [[Observer effect (information technology)]], the impact on the behaviour of a computer process caused by the act of observing the process while it is running
	~~== Physics ==~~		* [[Observer effect (physics)]], the disturbance of an observed system by the act of observation
	* [[Observer effect (~~physics~~)]], the impact of observing ~~a physical system~~		* [[Observer-expectancy effect]], a form of reactivity in which a researcher's cognitive bias causes them to subconsciously influence the participants of an experiment
	* [[~~Probe~~ effect]], the ~~effect on a physical~~ system ~~of adding measurement devices, such as~~ the ~~probes~~ of ~~electronic test equipment~~		* [[Observer's paradox]], a situation in which the phenomenon being observed is unwittingly influenced by the presence of the observer/investigator

	~~== Computing ==~~
	* [[~~Heisenbug~~]] of ~~computer programming,~~ in which a ~~software bug seems~~ to ~~disappear or alter its behavior when one attempts to study it~~
	* [[Observer ~~effect (information technology)~~]], the ~~impact~~ of ~~observing a process while it is running~~

	== Other uses ==		== Other uses ==
	* [[Observer Effect (Star Trek: Enterprise)\|"Observer Effect" (''Star Trek: Enterprise'')]], an episode of ''Star Trek: Enterprise''~~, named after the effect in physics~~		* [[Observer Effect (Star Trek: Enterprise)\|"Observer Effect" (''Star Trek: Enterprise'')]], an episode of the television series ''Star Trek: Enterprise''

	== See also ==		== See also ==
	* [[Bystander effect]], ~~the~~ social psychological theory that states that individuals are less likely to offer help to a victim in the presence of other people		* [[Anthropic principle]], a proposition in philosophy of science that emphasizes the sample selection bias introduced by the mere fact that an observer exists (also called the observation selection effect)
	* [[Actor–observer asymmetry]], a bias one ~~makes~~ when forming attributions about the behavior of others or themselves		* [[Bystander effect]], a social psychological theory that states that individuals are less likely to offer help to a victim in the presence of other people
			* [[Actor–observer asymmetry]], a bias one exhibits when forming attributions about the behavior of others or themselves
	* [[Demonstration effect]], an effect on the behavior of an individual caused by observation of the actions of others and their consequences		* [[Demonstration effect]], an effect on the behavior of an individual caused by observation of the actions of others and their consequences
	* [[Personal equation]], the idea that different observers have different reaction times, which can introduce bias when it comes to measurements and observations		* [[Personal equation]], the idea that different observers have different reaction times, which can introduce bias when it comes to measurements and observations
	* [[Placebo#Effects\|Placebo]] and [[Nocebo#Effects\|nocebo effects]], positive and negative effects autosuggested by a patient under an inert substance or treatment		* [[Placebo#Effects\|Placebo]] and [[Nocebo#Effects\|nocebo effects]], positive and negative effects autosuggested by a patient under an inert substance or treatment
	* [[Schrödinger's cat]], a thought experiment ~~that illustrates a paradox of~~ quantum superposition~~, devised by Austrian physicist Erwin Schrödinger~~		* [[Schrödinger's cat]], a thought experiment concerning quantum superposition
	* [[Uncertainty principle]], ~~any of~~ a ~~variety of mathematical inequalities~~ in quantum mechanics~~, introduced by German physicist Werner Heisenberg~~		* [[Uncertainty principle]], a fundamental concept in quantum mechanics

	{{Disambiguation}}		{{Disambiguation}}

imported>Xnft: revert vandalism

2025-05-07T15:09:08Z

revert vandalism

New page

'''Observer effect''', '''observer bias''', '''observation effect''', or '''observation bias''' may refer to a number of concepts, some of them closely related:
{{TOC right}}
== General experimental biases ==
* [[Hawthorne effect]], a form of reactivity in which subjects modify an aspect of their behavior, in response to their knowing that they are being studied
* [[Observer-expectancy effect]], a form of reactivity in which a researcher's cognitive bias causes them to unconsciously influence the participants of an experiment
* [[Observer bias]], a detection bias in research studies resulting for example from an observer's cognitive biases
* [[Observer's paradox]], a situation in which the phenomenon being observed is unwittingly influenced by the presence of the observer.

== Physics ==
* [[Observer effect (physics)]], the impact of observing a physical system
* [[Probe effect]], the effect on a physical system of adding measurement devices, such as the probes of electronic test equipment

== Computing ==
* [[Heisenbug]] of computer programming, in which a software bug seems to disappear or alter its behavior when one attempts to study it
* [[Observer effect (information technology)]], the impact of observing a process while it is running

== Other uses ==
* [[Observer Effect (Star Trek: Enterprise)|"Observer Effect" (''Star Trek: Enterprise'')]], an episode of ''Star Trek: Enterprise'', named after the effect in physics

== See also ==
* [[Bystander effect]], the social psychological theory that states that individuals are less likely to offer help to a victim in the presence of other people
* [[Actor–observer asymmetry]], a bias one makes when forming attributions about the behavior of others or themselves
* [[Demonstration effect]], an effect on the behavior of an individual caused by observation of the actions of others and their consequences
* [[Personal equation]], the idea that different observers have different reaction times, which can introduce bias when it comes to measurements and observations
* [[Placebo#Effects|Placebo]] and [[Nocebo#Effects|nocebo effects]], positive and negative effects autosuggested by a patient under an inert substance or treatment
* [[Schrödinger's cat]], a thought experiment that illustrates a paradox of quantum superposition, devised by Austrian physicist Erwin Schrödinger
* [[Uncertainty principle]], any of a variety of mathematical inequalities in quantum mechanics, introduced by German physicist Werner Heisenberg

{{Disambiguation}}

Observer effect - Revision history

imported>Citizenofinfinity: /* See also */ Added wikilink for "Anthropic principle", which is aka "observation selection effect" and somewhat relevant to a page dedicated to "observation effect"

imported>Xnft: revert vandalism