The Test of English Proficiency developed by Seoul National University or TEPS is an English proficiency test created by Seoul National University's Language Education Institute to evaluate South Korean test takers' English language skills. TEPS has been administered nationwide since January 1999. It consists of 200 questions which are divided into four sections: Listening (60 questions, 55 minutes), Grammar (50 questions, 25 minutes), Vocabulary (50 questions, 15 minutes), and Reading (40 questions, 45 minutes). TEPS scores are divided into the ten ratings ranging from 1 + to 5. It is designed to test applicants' communicative English skills and to minimize test-taker reliance on certain strategies such as rote memorization. A study of the test indicated that it is valid and fair. TEPS score is valid to be converted into TOEFL score and this conversion is used throughout many universities in the United States. Test structure TEPS consists of four sections: Listening Comprehension, Grammar, Vocabulary, and Reading Comprehension. The test has a total of 135 questions and takes approximately 1 hours and 45 minutes to administer. Scores are assigned on a scale of 0 points to 600 points total and incorporate Item Response Theory, which is also called the IRT. Listening: Parts 1 to 3 consist of conversations, while Part 4 consists of short monologues in the form of lectures, broadcasts, announcements, advertisements, and so on. Dialogues for parts 1 and 2 are heard once, because the conversation fragments are consisted with a single or three spoken statements. In these two parts, the test taker should select the answer that best comes after the fragments. Also, part 3 dialogues and part 4 lectures and their corresponding questions are heard twice before the answer choices are presented. In these two parts, the test taker should answer the question about the main idea, supporting detail, and inference about the passage. All listening comprehension questions are presented solely in aural form, which prevents lucky guesses from seeing written options prior to listening to a question. The listening section consists of 60 questions (15 for each section), lasts for about 55 minutes, and is worth 400 points. Grammar: The grammar section has a time constraint of 30 seconds per question, which helps measure a test taker’s true ability to apply grammar knowledge in real-life situations. This comprehension section has four parts, idealized to measure both colloquial and literary abilities. The grammar section consists of 50