Question

Suppose researchers are interested in the relationship between daily intake of caffeine and seizures. There are four possible values for this variable:

             Category1)  0-99 mg

             Category2) 100-299 mg

             Category3) 300-499 mg

               Category4) ≥ 500 mg

The reference category to which each of the others will be compared is the value 0-99

Organize these categories into a set of dummy variables. Describe what a 1 and 0 indicate for each dummy variable.

Answer 1