Few people are selected to be officers in the military. Prepare for both with the Peterson's Master the Air Force Officer Qualifying Test (AFOQT) and the Officer Aptitude Rating Exam (OAR) study guide. Our comprehensive study guide covers each area of both tests in-depth, with a diagnostic pre-test to help identify your strengths and weaknesses so you can focus your study time correctly. Several practice tests will prepare you for the actual exam.