Columbia College
Test of English as a Foreign Language or TOEFL /ˈtoʊfəl/ TOH-fəl, is a standardised test of English language proficiency for non-native English language speakers wishing to enroll in U.S. universities. The test is accepted by many English-speaking academic and professional institutions. TOEFL is one of the two major English-language tests in the world, the other being the IELTS.
TOEFL is a trademark of ETS (Educational Testing Service), a private non-profit organisation, which designs and administers the tests. The scores are valid for two years; then they are no longer reported.
From Wikipedia
Several videos on the TOEFL exam from the ETS website.