1. It can reach values closer to 1 in contingency tables with more categories. 2. Often, purely categorical data are summarised in the form of a contingency table . 3. Contingency tables are commonly put to use along with Pearson's chi-squared test.4. The four outcomes can be formulated in a 2? contingency table or confusion matrix, as follows: 5. It calculates exact p-values and confidence intervals for contingency tables and non-parametric procedures. 6. It combines data frames, contingency tables , random numbers, matrices in a user friendly virtual worksheet. 7. For hand calculations, the test is only feasible in the case of a 2 ?2 contingency table . 8. There may also be more than two variables, but higher order contingency tables are difficult to represent on paper. 9. Hill and Gauch ( 1979 ) created a similar contingency table with a regular structure with each context containing six types. 10. It is traditionally applied to contingency tables CA decomposes the chi-squared statistic associated with this table into orthogonal factors.