Creating Habits That Accelerate the Academic Language of Students (CHAAOS) is a vocabulary intervention developed by O’Connor et al. to improve the academic vocabulary of middle school students with disabilities. This study was designed as a replication of O’Connor et al.’s study; CHAAOS lessons were taught to 33 sixth graders who received special education services for disabilities in English/Language Arts classes. Researcher-designed vocabulary and comprehension assessments for the taught words were administered pre- and post-instruction. The performance of students in this study was compared with the performance of students in O’Connor et al.’s study. Results demonstrated that the present students made similar gains in vocabulary and comprehension compared with the previous CHAAOS students and scored significantly higher than the previous comparison students who did not receive any instruction on the words. These findings support the use of CHAAOS for improving the academic vocabulary of students with disabilities.

培养提高学生学术语言能力的习惯(CHAAOS) 是由 O'Connor 等人开发的词汇干预。提高残疾中学生的学术词汇量。本研究设计为复制 O'Connor 等人的研究；CHAAOS 课程教授给 33 名六年级学生，他们在英语/语言艺术课上接受了残疾特殊教育服务。研究人员设计的词汇和对所教单词的理解评估在教学前和教学后进行。将本研究中学生的表现与 O'Connor 等人的研究中学生的表现进行了比较。结果表明，与之前的 CHAAOS 学生相比，现在的学生在词汇和理解方面取得了相似的进步，并且得分明显高于之前没有接受任何单词指导的比较学生。