chi-square
noun Usage: often attributive Date: 1900 a statistic that is a sum of terms each of which is a quotient obtained by dividing the square of the difference between the observed and theoretical values of a quantity by the theoretical value

New Collegiate Dictionary. 2001.

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  • chi-square — chi′ square [[t]ˈkaɪ[/t]] n. sta a statistical quantity equal to the summation over all variables of the quotient of the square of the difference between the observed and expected values divided by the expected value of the variable • Etymology:… …   From formal English to slang

  • chi-square — [kī′skwer′] n. a statistical method used to test whether the classification of data can be ascribed to chance or to some underlying law …   English World dictionary

  • chi-square — noun A test statistic used in the chi square test …   Wiktionary

  • Chi Square — Chi Quadrat (χ2) ist eine Testgröße, mittels der ein Signifikanztest (auch: statistischer Test), der Chi Quadrat Test, durchgeführt wird. Der Chi Quadrat Test basiert auf dem Vergleich zwischen erwarteten und beobachteten Werten zweier Merkmale… …   Deutsch Wikipedia

  • chi-square — /kuy skwair /, n. Statistics. a quantity equal to the summation over all variables of the quotient of the square of the difference between the observed and expected values divided by the expected value of the variable. [1935 40] * * * …   Universalium

  • chi-square — ˈkī| noun : the sum of the quotients obtained by dividing the square of the difference between the observed and theoretical values of a quantity by the theoretical value …   Useful english dictionary

  • chi-square — A statistical technique whereby variables are categorized to determine whether a distribution of scores is due to chance or experimental factors. * * * (kiґskwār) see under distribution and test …   Medical dictionary

  • chi-square — See significance tests …   Dictionary of sociology

  • Chi-square test — is often shorthand for Pearson s chi square test. A chi square test (also chi squared or chi^2 test) is any statistical hypothesis test in which the test statistic has a chi square distribution when the null hypothesis is true, or any in which… …   Wikipedia

  • chi-square test — chi′ square (or chi′ squared ) test n. sta a test that uses the quantity chi square for testing the mathematical fit of a frequency curve to an observed frequency distribution • Etymology: 1935–40 …   From formal English to slang

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