# Analysing two unpaired variables

## Introduction

If you are interested to know if two variables have some form of relation (or association) with each other, or if one might have an effect on the other, you can perform various tests that are explained in this section. If however you are interested in change (difference) then an unpaired test might be more suitable.

With three measurement levels, we can create six different ways to have two variables

1) Two nominal variables

2) A nominal and an ordinal variable

3) A nominal and a scale variable

4) Two ordinal variables

5) An ordinal and a scale variable

6) Two scale variables

For each of the possible combinations a separate section was created. Click on the link to the left of the combination you want to investigate.

**Two variables - unpaired**

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