Tests for independence between two sets of categorical questions, containing \(p\) and \(q\) variables or categories respectively. The test statistic is:

\[\begin{align} V = \sum^m_{i=1} nr^2_i\end{align}\]

where:

\(n\) is the Effective Sample Size (see Weights, Effective Sample Size and Design Effects),

\(p \approx \Pr(\chi^2_{pq} \ge \Lambda)\).

Note that when preparing the data Q/Displayr will modify \(p\) and \(q\) as required (explanations are provided in the test outputs).

## See Also

Multivariate Tests