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Repeated Measures Analysis of Variance

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Edited by: Published: 2018
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The repeated measures analysis of variance (ANOVA) is an omnibus test that is an extension of the dependent samples t test. The test is used to determine whether there are any significant differences between the means of three or more variables (also called levels). The repeated measures ANOVA is used when the sampled observations are measured under a number of conditions (this is why sometimes the test is referred to as an ANOVA for correlated samples). Where this data condition exists, a standard ANOVA would not be appropriate as it would not take into account the natural correlation (relationship) between the repeated measures. In the context of educational assessment, if we were to test a group of students’ ability on a standardized math exam ...

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