Lesson Five
Lesson
Introduction <br> In the previous lesson, you learnt that just because a category is labeled as a number, it does not become quantitative. You also wrangled with attributes that fall in the gray area between categorical and quantitative. <br> You will soon discover that it can be useful to treat a quantitative variable as categorical. In that process, you will learn techniques of filtering out cases and categories when they obscure the questions you are trying to study. <br> In this lesson, you will: Decide when to treat a quantitative variable as a categorical Use recoding as a technique to group quantitative variables into categories Appreciate the use of recoding Use filtering to focus your analysis