analysis of variance


Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.

analysis of variance

n.
A method for assessing the contribution of an independent variable or controllable factor to the observed variation in an experimentally observed dependent variable.

analysis of variance

n
(Statistics) statistics any of a number of techniques for resolving the observed variance between sets of data into components, esp to determine whether the difference between two samples is explicable as random sampling variation with the same underlying population. Abbreviation: ANOVA
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.analysis of variance - a statistical method for making simultaneous comparisons between two or more meansanalysis of variance - a statistical method for making simultaneous comparisons between two or more means; a statistical method that yields values that can be tested to determine whether a significant relation exists between variables
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
multivariate analysis - a generic term for any statistical technique used to analyze data from more than one variable
References in periodicals archive ?
Based on the information obtained from the analysis of variance it was determined that there is a statistically significant change (probability calculated less than 0.05) in the average yield stress in film 12 (LLDPE + Smartlight photoselector (S) 1.00% w) which is found well below the average.
Analysis of variance showed that the effect of experimental factors within probability level 1% on seedling height is significant (Table 1).
According to analysis of variance, different doses of nitrogen alone and in combination with constant doses of phosphorus and potassium had no significant effect on number of flowers per plant.
In order to test the effect of gender and grade level on pre-service teachers' mathematics teaching efficacy beliefs, two-way Analysis of Variance (ANOVA) was run.
(1) Using analysis of variance and t tests to compare outcomes across the eight phases of the moon, the researchers found no statistically significant differences in the number of births overall or of births to women who had had more than one pregnancy, in types of delivery or in complications.
Plants tissue was then weighed and data analyzed using one-way analysis of variance with means separated with Duncan's Multiple Range Test.
The raw scores from the self-concept scales and the social studies test were analyzed by using a two-way analysis of variance (ANOVA).
"One of the signatures of scientific writing is its ability to present the claims of science as if they were 'untouched by human hands.' In the early years of experimental education, researchers achieved this by adopting a citational practice that led to the sedimentation of their cardinal method, the analysis of variance, and their statistical framework from its historical conditions of production.
Comparisons were performed by analysis of variance (ANOVA), with a statistical significance level of 0.05.
Data obtained were subjected to an analysis of variance and Duncan's mean compression tests to determine the effect of the site index on the mechanical properties.
A one way analysis of variance of data from 19.5C wash temperature found no significant difference among the mean bacterial growth of all fabric samples and the control (F5, 26, .05=2.59,P>.05).
Analysis of variance revealed that year was a significant source of variation.

Full browser ?