In addition to an interest in language and an aptitude for analytic thinking, high scores on verbal, analytic, and quantitative aptitude tests are indicators of success in linguistics. Students must be able to reason logically and explicitly and deal with formulas and abstract symbols; those who pursue laboratory research in linguistics will also need training in statistical and experimental methodologies. Depending on their vocational goals, prospective linguistics students should consider pursuing their studies either through the M.A. in linguistics with a professional focus or through the doctorate; or they should take a second major. Appropriate companion fields include (but are not limited to) world languages, English, anthropology, sociology, speech and hearing science, psychology, mathematics, computer science, philosophy, and elementary and secondary education.