sentence structure are regarded as a barrier to understand texts. These two areas affect their studying at higher level which requires skillful reader to read various English textbooks and other materials.
Few research studies have been done to investigate students’ reading problems in the areas of sentence structure, vocabulary, and reading comprehension, especially in Nakhonratchasima. Therefore, reading problems of 12th-grade students in sentence structure, vocabulary, and reading comprehension were focused in this study. Furthermore, the present study aimed to analyze the differences in reading ability between students in the science program and the arts program.