Either is acceptable. Applicants whose native language is not English are required to submit directly from the testing service either a TOEFL (Test of English as a Foreign Language) or an IELTS (International English Language Testing System) score. The minimum acceptable TOEFL score is 550 (paper-based), 213 (computer-based), or 79 (internet-based). The minimum IELTS score is 6.5. However, international students who have received college degrees from US universities and selected other universities in English-speaking countries may be exempted from taking the TOEFL test. Those who have poor English-speaking or writing abilities may be required to take the TOEFL even if their degree is from an American university. Please check the Graduate School‘s website for the most current information on the TOEFL and the IELTS.