Define a variable with ordered categorical responses, such as "How frequently do you drink alcoholic beverages?" The responses could be categorized as none, seldom (less than once per week), or often. Then, define a second variable with similar response categories, such as "How often do you drink soft drinks?" Have students analyze the results of data collected from the class (or from another convenient group) by looking at a two-way table. A good way to set up such a table for ordered categories is as follows:
a. What type of association would be suggested by large values of (c, e, g)?
b. What type of association would be suggested by large values of (a, e, i)?
c. Do you see any relationship between the concepts of association between categorical variables and correlation between measurement variables? Explain.