The Armed Services Vocational Aptitude Battery (ASVAB) is a timed, multi-aptitude test that reveals areas of strength and ability in science, math, and language. The ASVAB is usually administered at Stafford High School four times throughout the school year, twice in the fall and twice in the spring. Students must sign up since there are a limited number of seats available. A registration form will be sent out to all 10th, 11th, and 12th graders.