A researcher is studying the effect of diet on depression. The hypothesis is that a diet high in carbohydrates will help to alleviate the symptoms of depression. The group being studied is a random group of depressed inpatients. Every other day the subjects fill out depression symptom inventory.
In the above study, the symptom inventory provides information about the:
a. interaction effect
b. dependent variable
c. independent variable
d. confounding variable
e. control variable
b. dependent variable
A researc