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5.03 One-way ANOVA - Post-hoc t-tests

In this module we'll discuss analysis of variance, a very popular technique that allows us to compare more than two groups on a quantitative dependent variable. The reason we call it analysis of variance is because we compare two estimates of the variance in the population. If the group means differ in the population then these variance estimates differ. Just like in multiple regression, factorial analysis of variance allows us to investigate the influence of several independent variables.

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