In my last post, I discussed the experimental design for comparing the effect of an event on two groups (treatment and control groups). The example showed no significant effect, i.e., no difference between the groups, for the intervention discussed. But is this true? The result could be correct and there...
Motivation In the last article, I discussed how to implement a simple model to judge the (linear) relationship between two or more variables. In this article, I will walk you through a simple yet powerful tool for judging the difference between groups. In an ideal world, we would like to...
For many real-life questions, we are interested in the relationship between two (or more) parameters. Typical questions are: This article shows how to approach such questions using the simplest model. A model that assumes a linear relationship between the outcome (the thing that is affected) and the regressor(s) (the thing...
