## 1. What do you want to do?

- Perform tests on frequencies (ie the distribution of one or more sets of observations), where the data are frequencies or counts in categories. Go to 2.
- Test the relationship between variables, where the data are scale or ordinal. Go to 3.
- Test the difference between sets of observations, where the dependent data are scale or ordinal, and in categories defined by the independent variable. Go to 4.