In order to study in the United States, students take standardized tests such as the TOEFL, SAT I, SAT II Subject Tests, ACT, GRE, GMAT, and others.
Most short-term programs will require some proof of English language proficiency. Students may be asked to obtain written verification of English language skills from teachers or advisers, or to submit scores from an internationally recognized English language assessment test, usually the Test of English as a Foreign Language (TOEFL).
The TOEFL test measures the ability of nonnative speakers to use and understand English as it is spoken, written, and heard in college and university settings.