Category Archives: ANOVA

Pre-post data: Do I need to use repeated measures in my model?

First of all, let’s define what we mean by pre-post data. The classic pre-post design consists in having measurements for an outcome variable in two time points, usually before and after an intervention or treatment. It is common two have … Continue reading

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When do I need to use a one-way ANOVA and how do I interpret the results?

Let’s start by defining when a one-way Analysis of Variance is adequate. One of the assumptions in the one-way ANOVA is that the dependent variable is of a continuous nature and the independent variable is categorical. A categorical variable takes … Continue reading

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