goodness of fit

A statistical term used to indicate the correspondence between an observed distribution and a model or hypothetical mathematical distribution. In many statistical tests of significance the hypothetical or expected distribution is a model based upon there being no relationship between the dependent and independent variables . The tests then measure whether any observed deviation from the expected model may reasonably be accounted for by chance sampling variation, or whether it is sufficiently large to indicate a real difference, generalizable to the population from which the sample was taken. See also significance tests.

Dictionary of sociology. 2013.

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  • Goodness of fit — The goodness of fit of a statistical model describes how well it fits a set of observations. Measures of goodness of fit typically summarize the discrepancy between observed values and the values expected under the model in question. Such… …   Wikipedia

  • Goodness-Of-Fit — Used in statistics and statistical modelling to compare an anticipated frequency to an actual frequency. Goodness of fit tests are often used in business decision making. In order to calculate a chi square goodness of fit, it is necessary to… …   Investment dictionary

  • goodness of fit — 6 : fit 1d * * * goodness of fit (statistics) The extent to which observed data matches the values predicted by a theorem • • • Main Entry: ↑good * * * Statistics the extent to which observed data match the values expected by theory …   Useful english dictionary

  • Goodness of Fit — Die Anpassungsgüte (engl. goodness of fit) beschreibt, wie gut ein statistisches Modell eine Menge von Beobachtungen trifft. Das Maß der Anpassungsgüte fasst typischerweise die Diskrepanz zwischen beobachteten Werten und Werten, die man aufgrund… …   Deutsch Wikipedia

  • goodness of fit — Date: 1895 the conformity between an experimental result and theoretical expectation or between data and an approximating curve …   New Collegiate Dictionary

  • goodness of fit — Degree of agreement between an empirically observed distribution and a mathematical or theoretical distribution …   Medical dictionary

  • goodness of fit — noun (in statistics) the measure of how closely a set of observed values approximate those derived from a theoretical model …   Australian English dictionary

  • goodness of fit Statistics — the extent to which observed data match the values expected by theory. → goodness …   English new terms dictionary

  • Goodness-of-Fit-Test — ⇡ statistische Testverfahren …   Lexikon der Economics

  • fit — I. noun Etymology: Middle English, from Old English fitt; akin to Old Saxon fittea division of a poem, Old High German fizza skein Date: before 12th century archaic a division of a poem or song II. adjective (fitter; fittest) Etymology: Middle… …   New Collegiate Dictionary

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