Analysing two nominal variables
If you have two nominal variables you might be curious if one of them has an influence on the other, in other words if there is an association between them. To find out the analysis will be done in the following steps.
1) Get an impression of the sample data by creating a cross table.
2) Visualise the sample data
3a) Test if there is an association (using a Pearson Chi-square test of independence)
3b) If there is determine what the influence is (using a post-hoc test)
3c) Determine the strength of the association (using Cramer's V)
4) Write up the report.
For each of the described steps above a separate page was created. Let's begin with getting an impression of the data on the next page.
Two nominal variables