A physician wants to know what works best to lower cholesterol
in the patients he serves. He decides to randomly assign his
patients to one of the following groups: exercise, diet,
exercise+diet. In addition, you are interested in whether there is
a gender difference. Indicate each of the following:
a. Independent variable considered as treatment?
b. Independent variable considered as a classification
variable?
c. Number of comparison groups?
d. Dependent variable?
e. Scale of measurement of the dependent variable?
f. Confounded effect variable(s)?