An analysis of the inter-grade continuity of the reading passages of high school English mock CSAT tests using Coh-Metrix

The main objective of this study was to analyze the continuity of reading passages in high school English mock College Scholastic Ability Test (CAST) exams using Coh-Metrix, a multi-level text analysis tool. To achieve this, the study constructed a corpus of reading passages from the 2022 high school English mock exams and subjected them to a broad range of Coh-Metrix measures. These measures included basic measures (the number of words, the number of sentences, average word length, average sentence length), word frequencies (word frequencies for content words), word features (imageability, concreteness, age of acquisition, familiarity), lexical diversity measures (type-token ratios for content words), personal pronouns (first person pronouns, second person pronouns, third person pronouns), connectives, readability indices (Flesch Reading Ease, Flesch-Kincaid Grade Level), syntactic complexity (noun density scores, the number of words before main verbs), coreference cohesion measures, and semantic cohesion measures. The main results revealed that the continuity of high school English mock tests was well established for average word and sentence length measures, the average number of words, word frequencies, word familiarity, second person pronouns, standard readability indices, and syntactic complexity measures. These findings have implications for the development of reading passages in high school English mock exams.