In this study, the continuity of reading passages from high school mock College Scholastic Ability Test (CAST) English exams across grade levels was investigated using Coh-Metrix. A corpus consisting of 525 reading passages, evenly distributed with 175 passages from each high school grade level, was compiled from the 2017-2023 mock CSAT English exams administered by the Seoul Metropolitan Office of Education. Coh- Metrix measures included basic counts, word frequencies, word features, lexical diversity, personal pronouns, connectives, standard readability, syntactic complexity, coreference, and semantic cohesion indices. The analysis revealed significant differences among grade levels in the reading passages of the mock CSAT English exams in measures such as word counts, average word and sentence length, nouns, age of acquisition, second person pronouns, standard readability, and subject density indices. These findings highlight the potential for refining the design and construction of reading passages in mock CSAT exams to better prepare students for the linguistic challenges presented in the actual high-stakes CSAT.

1. 서론
2. 이론적 배경
    2.1. 수능영어 시험 지문 분석 선행 연구
    2.2. 영어 모의고사 지문 분석 선행 연구
3. 연구 방법
    3.1. 연구 대상 모의고사 코퍼스
    3.2. 모의고사 코퍼스 구축 및 분석 프로그램
4. 연구 결과 및 논의
    4.1. 어휘 수준 측정치 분석 결과
    4.2. 문장 수준 측정치 분석 결과
    4.3. 담화 수준 측정치 분석 결과
5. 결론 및 제언
REFERENCES

• 류지수(Research Professor, The Konkuk Research Institute for Multilingualism and Multiculturalism, Konkuk University) | Jisu Ryu
• 이혜진(Assistant Professor, Department of English Education, Wonkwang University) | Hyejin Lee
• 전문기(Professor, Department of English Language & Literature, Konkuk University; 120, Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea) | Moongee Jeon Corresponding author