Scenario: Patsy conducted a true experiment that included two groups of jr. high school girls. Both groups had 30 girls. One group received no training while the other received a 3-hour intervention about the benefits of careers in math and science domains. Patsy compared the willingness of girls to enroll in subsequent math courses as her outcome measure. Her t-test analysis indicated no differences between her treatment group and the no-exposure control. Question: In Patsy's study, willingness to enroll in future math and science courses is the

Group of answer choices

a. dependent variable.

b. independent variable.

c. manipulated variable.

d. control variable.