An MCAT tutor helps students prepare for the Medical College Admissions Test, which is a primary component of medical school applications. Your duties and responsibilities vary, depending on the position and company. You may be a freelance tutor and work one-on-one with clients, drilling them on specific areas of the test where they are weak. Tutoring for a large company may entail holding group classes that provide general testing tips. Or you may tutor online to an online audience. But all tutors determine what parts of the test your client needs help on, and they develop methods to help the student prepare for the exam and score as well as possible.