ABSTRACT
The interpretation of test results is covered in Section Thirteen, If you are not familiar
with interpreting the results of statistical tests, you will need to read this section first
Tests for data at the nominal level
• Chi-square test • Sign test
Chi-square test
When to use The chi-square test is used if you have data at the nominal level (data in which you allocate participants to a category) and if the data is independent (each participant can only be represented in one ‘cell’ of the chart) or if all the observations come from the same participant.
