3.1   Two variables (CROSSTABS)

Joint frequency distributions of two variables displayed in contingency tables.  Dependent and independent variables: rules for percentaging.

3.1.1  Introduction to tabulation                                                           
            Recommended reading
3.1.2  Analysing two variables                                               
             Preliminary reading: progression from frequency counts via conditional frequency  
             counts to joint frequency counts [contingency tables]

3.1.3 Tutorial -  Contingency tables from SPSS 
              Tabulation of two variables.  Introduction to the CROSSTABS  command.  The SPSS command
              CROSSTABS creates 2-way contingency tables for two variables, and nested sub-tables when
              controlling for one or more test variables.  It also provides percentages based on row, column
              and global totals, a range of measures of statistical (non-)  association and various controls
              over table content and format.

The following materials are in preparation.

3.1.4  Exercise for contingency tables 
3.1.5  Specimen answer for contingency tables exercise