Dr. Kucinski developed an English aptitude test to give to students who wish to register for his advanced English course. Which of the following is the best way to determine if his test has predictive validity? a. Comparing students’ scores on the test with their final grades in his class (Predictive validity refers to the ability to predict an outcome based on what the test is designed to measure. b. In this case, the test is designed to measure aptitude for work in an advanced English course. c. Higher scores on the aptitude test should predict which students are likely to do well in the course.)