Find a study guide at your local library, a bookstore or online. Among the well-known study guides are "ASVAB for Dummies," "Kaplan ASVAB" and "McGraw-Hill's ASVAB." If you expect to take a computerized version of the test, look for a study guide that includes a CD-ROM.
Take a practice test to determine which subjects are your weakest.
Set up an study schedule that focuses on your weak areas and stick to it. Give yourself plenty of time to prepare. Plan when and where you will study, which subjects you will cover and make a chart to track your progress.
Find a quiet place to study without any distractions. If your home is too noisy, try the local library. Librarians may also be able to assist you in finding good study materials to help you raise your lower scores.
Get support from family and friends. This will show them you are serious about your plan and they will be more likely to help. Also post your schedule for everyone to see; this will encourage them to respect your study time.
Use the study methods that work best for you. For example, take notes, highlight sections in your book, make outlines or create your own flash cards. If you learn best by hearing, then read the book aloud to help the information sink in.
The day before the test, do a simple review but don't try to cram. Get some exercise, eat a healthy dinner and sleep well. The day of the test, eat a good breakfast, don't drink a lot of fluids and arrive early so you can relax and glance at your notes.