MrO'Hara Has Developed a Test of Mechanical Aptitude

Multiple Choice

Mr.O'Hara has developed a test of mechanical aptitude.At the beginning of a course in auto mechanics, he gives this test to his students.At the end of the year, he compares students' scores on the test with their actual achievement in his course.He is probably trying to determine:

A) the practicality of the test.
B) the reliability of the test.
C) the content validity of the test.
D) the predictive validity of the test.