In this example we will use the data file ChiData.txt which consists of two columns of data representing the row and column of a three by three contingency table. The rows represent each observation with the row and column of that observation recorded in columns one and two. We begin by selecting the Statistics/Non Parametric / Contingency Chi Square option of the menu. The following figure (Fig. 10.1) demonstrates that the row and column labels have been selected for the option of reading a data file containing individual cases. We have also elected all options except saving the frequency file.