Introducing our OAR Study Guide: 500+ Practice Questions and Officer Aptitude Rating Test Prep [5th Edition] ! Trivium Test Prep's OAR Study Guide includes everything you need to pass the Officer Aptitude Rating Test the first time . Quick review of the concepts covered on the OAR Exam 3 Practice Tests with detailed answer explanations Tips and tricks from experienced United States Navy Officers and educators Access to online flash cards, cheat sheets, and more Trivium Test Prep's OAR Study Guide is aligned with the official OAR Exam framework. Topics covered include: Math Skills Reading Comprehension Mechanical Comprehension The United States Navy was not involved in the creation or production of this product, is not in any way affiliated with Trivium Test Prep, and does not sponsor or endorse this product. About Trivium Test Prep At Trivium Test Prep, we understand that students need high quality, reliable test prep materials. Our test prep materials are developed by credentialed experts with years of experience who are excited to share their knowledge with you. We have resources available to assist in every step of your education - from high school, to college or the military, and even graduate school - everything you need to kickstart your career.