SAT subject tests are hourlong, multiple-choice exams that assess a student’s knowledge in a specific subject. These test are less commonly completed by students than the ACT or SAT are, despite the fact that certain schools require them. Other colleges strongly recommend them, and some schools have no preference at all.

But subject tests should be viewed not as just another application requirement, but instead as an opportunity to provide depth and variety to your profile. If you are considering taking one or more, there are three questions to ask yourself first.

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1. Should I submit SAT subject tests to my potential colleges?

The most obvious answer is to monitor the application requirements for each college you plan to apply to. This includes not only how many exams to submit, but also which subjects. Specific programs may wish to evaluate your abilities in key content areas. If they do not, selecting closely linked subjects can be an excellent way to demonstrate your commitment to a particular major.

You should also ensure that you register and sit for subject tests when colleges recommend that you do so. If you choose not to, you will likely be competing against many students who have gone the proverbial extra mile, even though it was not strictly required.

If a school does not mention SAT subject tests, consider submitting them regardless. This is especially true if you are strong in a subject that is not reflected in your other test scores, or if you have taken the SAT multiple times without an improvement in your score. A high mark on an SAT Subject Test can be a great way to strengthen weaknesses in your application.

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2. Which particular test or tests should I take?

Whenever possible, exercise your right to choose. For instance, do not feel you must submit a math test if it is not specifically required, especially if you do not plan to pursue a degree in math or science.

If there is a particular AP course that you were unable to take, but that you feel you would have done well in, consider completing the corresponding subject test. In general, it is best to select those subjects that you are strongest in.

Be careful to avoid taking tests indiscriminately, as quality is much more important than quantity, and a poor score on an SAT subject test may counteract a strong grade on your high school transcript in the same subject.

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3. When should I take my SAT subject tests?

The most beneficial time to take an SAT subject test is directly after finishing the course that is relevant to the exam. SAT subject tests are designed to test your knowledge of the high school curriculum, so try to choose a time when the knowledge is still fresh in your mind.

Your junior year of high school is perhaps the latest you should sit for a subject tests. Exam dates are not available during the summer, and your senior year may be a whirl of other commitments and deadlines.

As with many aspects of high school and the college admissions process, when to take subject tests and which tests to take are questions with different answers for each student. The most important items to consider are your strengths and how you wish to present yourself to colleges.

SAT subject tests should not be thought of solely as another exam to take. Instead, think of them as a tool that you can use to put your best foot forward when applying to schools.

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3 Questions to Ask Before Taking SAT Subject Tests originally appeared on usnews.com