Observer effect: Difference between revisions

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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:
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== 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}}

Latest revision as of 06:20, 24 October 2025

Observer effect, observer bias, observation effect, or observation bias may refer to a number of concepts, some of them closely related:

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Common uses

  • 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
  • Heisenbug, a software bug that seems to disappear or alter its behavior when one attempts to study it
  • 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 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
  • Observer effect (physics), the disturbance of an observed system by the act of observation
  • Observer-expectancy effect, a form of reactivity in which a researcher's cognitive bias causes them to subconsciously influence the participants of an experiment
  • Observer's paradox, a situation in which the phenomenon being observed is unwittingly influenced by the presence of the observer/investigator

Other uses

See also

  • 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)
  • 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
  • Personal equation, the idea that different observers have different reaction times, which can introduce bias when it comes to measurements and observations
  • Placebo and nocebo effects, positive and negative effects autosuggested by a patient under an inert substance or treatment
  • Schrödinger's cat, a thought experiment concerning quantum superposition
  • Uncertainty principle, a fundamental concept in quantum mechanics

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