Versions of the ASVAB
There are three different versions of the ASVAB available for you to take depending upon your individual needs.
Student ASVAB
The first version is a student ASVAB. This test is a pen and paper test that is usually taken at an educational facility such as a high school or college. It is composed of eight subtest sections and takes approximately three hours to complete. Upon completion of this test the student and the counselor will go over the results and use it to explore career possibilities, college areas of focus and personality qualities that you possess. Among the test results you will find your Armed Forces Qualification Test score which can be used in the future for enlistment in any of the military branches.
ASVAB at Mobile Examination Test Sites
The second version of the ASVAB is given at a mobile examination test site or MET site. This is also a pen and paper test but, in this case, it is used for the sole purpose of enlistment qualification. It also includes and additional subtest to make the total nine. This subtest is a test of object assembly which is used for research purposes. The test requires approximately three and one-half hours to complete.
CAT-ASVAB
The third version of the ASVAB that is available is a computer-adaptive test or CAT-ASVAB. This test is taken on the computer and is used for the sole purpose of enlistment qualification. It is administered at the Military Entrance Processing Station and usually can be completed in one and one-half hours. With this test, unlike the previous two mentioned, once an answer is given it cannot be changed. However, it is important to know that incorrect answers are not counted against you. If you answer a question incorrectly, an easier question will be given to you next time and reversely, if you answer a question correctly, the next question will be more difficult. This being said, it is okay to guess at an answer. If time is running out it is much better to make quick guesses than failing to complete all questions given.
All ASVAB scores are valid for two years.