# Interaction & Analysis of Variance Explanations

1. What is an interaction? Describe an example; what are the variables within your population (work, social, academic, etc.) for which you might expect interactions?

2. How would you explain the analysis of variance, assuming that your audience has not had a statistics class before?

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#### Solution Preview

1. The concept of statistical interaction can be difficult to grasp. I hope to explain it to you in a way that will facilitate your understanding.

Simply put, an interaction is the association or linkage of two (or more) independent variables. Another way to say this is that the effect of one independent variable upon the dependent variable is influenced by a second independent variable.

The best way to illustrate statistical interaction is with examples. We often hear about drug interactions in everyday language, harmful consequences that result because two medications cause unpredicted damage to the body. Let's say that a patient is taking Drug A to lower blood pressure. In this instance, we can consider the administration of Drug A to be ...

#### Solution Summary

This solution contains over 450 words, including three original examples, explaining the concepts of interaction and analysis of variance.