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Hidden variables may refer to:

Confounding, in statistics, an extraneous variable in a statistical model that correlates (directly or inversely) with both the dependent variable and the independent variable
Hidden transformation, in [computer science, a way to transform a generic constraint satisfaction problem into a binary one by introducing new hidden variables
Hidden variable theories, in physics, the proposition that statistical models of physical systems (such as Quantum mechanics) are inherently incomplete, and that the apparent randomness of a system depends not on collapsing wave functions, but rather due to unseen or unmeasurable (and thus "hidden") variables
Latent variables, in statistics, variables that are inferred from other observed variables
Local hidden variable theory, in quantum mechanics, a hidden variable theory in which distant events are assumed to have no instantaneous (or at least faster-than-light) effect on local events

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+{{wiktionary|hidden variable}}
 '''Hidden variables''' may refer to:
+* [[Confounding]], in statistics, an extraneous variable in a statistical model that correlates (directly or inversely) with both the dependent variable and the independent variable
-* [[Hidden variable theory|Hidden variable theories]], in [[physics]], the proposition that statistical models of physical systems (such as [[Quantum Mechanics]]) are inherently incomplete, and that the apparent randomness of a system depends not on collapsing wave functions, but rather due to unseen or unmeasurable (and thus "hidden") variables. In sharp contrast to the generally accepted [[Copenhagen Interpretation]].
+* [[Hidden transformation]], in [computer science, a way to transform a generic constraint satisfaction problem into a binary one by introducing new hidden variables
-* [[Latent variable]]s, in [[statistics]], variables that are inferred from other observed variables
+* [[Hidden variable theory|Hidden variable theories]], in physics, the proposition that statistical models of physical systems (such as Quantum mechanics) are inherently incomplete, and that the apparent randomness of a system depends not on collapsing wave functions, but rather due to unseen or unmeasurable (and thus "hidden") variables
-* [[Hidden transformation]], in [[computer science]], a way to transform a generic constraint satisfaction problem into a binary one by introducing new '''hidden variables'''
+* [[Latent variable]]s, in statistics, variables that are inferred from other observed variables
-* [[Confounding]] or hidden variables in general. That is, a variable that actually creates the illusion of a causal relation (e.g. firemen often appear after smoke, not because smoke causes firemen, but because ''fire'' causes both smoke and firemen)
+* [[Local hidden variable theory]], in quantum mechanics, a hidden variable theory in which distant events are assumed to have no instantaneous (or at least faster-than-light) effect on local events
 == See also ==
 * [[Hidden dependencies]]
-{{dab}}
+{{disambiguation}}
 [[Category:Hidden variables|*]]