This is a chi-square calculator for a contingency table that has up to five rows
and five columns (for alternative chi-square calculators, see the column to your
right).
The first stage is to enter group and category names in the textboxes below - this
calculator allows up to five groups and categories, but fewer is fine. Note: You
can overwrite "Category 1", "Category 2", etc., and you can
type in the empty textboxes.
Imagine, for example, that you have collected data on different teaching techniques
for PhD candidates - some have had no teaching, some have been taught, and some
have been taught, plus they've sat yearly exams - and you want to see whether these
different experiences have an effect on the final result, where the four possibilities
are outright failure, a lower MPhil qualification, a deferral and a pass. In this
situation, the groups would be No Teaching, Teaching, Teaching + Exams (entered
into the first three boxes in the far left column); and the categories would be
Fail, MPhil, Deferral and Pass (entered into the first four boxes - left to right
- of the top row).