Analysis Of Variance - ANOVA

Analysis Of Variance - ANOVA
A statistical analysis tool that separates the total variability found within a data set into two components: random and systematic factors. The random factors do not have any statistical influence on the given data set, while the systematic factors do. The ANOVA test is used to determine the impact independent variables have on the dependent variable in a regression analysis.

The ANOVA test is the initial step in identifying factors that are influencing a given data set. After the ANOVA test is performed, the analyst is able to perform further analysis on the systematic factors that are statistically contributing to the data set's variability. ANOVA test results can then be used in an F-test on the significance of the regression formula overall.

Investment dictionary. . 2012.

Look at other dictionaries:

  • analysis of variance — Date: 1918 analysis of variation in an experimental outcome and especially of a statistical variance in order to determine the contributions of given factors or variables to the variance …   New Collegiate Dictionary

  • analysis of variance — Statistics. a procedure for resolving the total variance of a set of variates into component variances that are associated with defined factors affecting the variates. Also called variance analysis. [1935 40] * * * …   Universalium

  • analysis of variance — noun a statistical procedure for resolving the total variance of a set of variates into component variances, which are associated with factors affecting the variates …   Australian English dictionary

  • analysis of variance — See causal modelling , variation (statistical) …   Dictionary of sociology

  • Kruskal-Wallis one-way analysis of variance — In statistics, the Kruskal Wallis one way analysis of variance by ranks (named after William Kruskal and W. Allen Wallis) is a non parametric method for testing equality of population medians among groups. Intuitively, it is identical to a one… …   Wikipedia

  • Дисперсионный анализ (analysis of variance) — Дисперсионный анализ (ДА), в том смысле как он обычно понимается и широко используется в качестве статистического метода, был развит в значительной мере Р. А. Фишером. Несмотря на то, что этот метод представляет собой анализ различных оценок… …   Психологическая энциклопедия

  • variance — 1) In standard costing and budgetary control, the difference between the standard or budgeted levels of cost or income for an activity and the actual costs incurred or income achieved. If the actual performance is better than standard then a… …   Big dictionary of business and management

  • Analysis of categorical data — These are statistical procedures which can be used for the analysis of categorical data:* regression * analysis of variance * linear modeling * log linear modeling * logistic regression * repeated measures analysis * simple correspondence… …   Wikipedia

  • variance analysis — Statistics. See analysis of variance. * * * …   Universalium

  • analysis of covariance — (ANCOVA) a statistical procedure used with one dependent variable and multiple independent variables of both categorical (ordinal, dichotomous, or nominal) and continuous types; it is a variation of analysis of variance that adjusts for… …   Medical dictionary

  • variance analysis — See: analysis of variance …   Accounting dictionary