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During Year 1, teachers taught 48 words to their sixth grade students, who learned and retained the words significantly better than the students in business-as-usual (BAU) control classes. In the current study, we report the second year results, as the sixth grade students entered seventh grade. Students ( n = 42) in treatment classes again learned 48 new vocabulary words significantly better than similar students in BAU ( n = 21) special education classes. In seventh grade, students also outperformed BAU students on maintenance of these age-appropriate words ( p &lt; .001) and on a standardized measure of vocabulary ( p = .04).<\/jats:p>","DOI":"10.1177\/0022219420922839","type":"journal-article","created":{"date-parts":[[2020,5,28]],"date-time":"2020-05-28T07:51:41Z","timestamp":1590652301000},"page":"187-202","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Systematic CHAAOS: Teaching Vocabulary in English\/Language Arts Special Education Classes in Middle School"],"prefix":"10.1177","volume":"54","author":[{"given":"Rollanda E.","family":"O\u2019Connor","sequence":"first","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victoria M.","family":"Sanchez","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian T.","family":"Jones","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luisana","family":"Suchlit","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valencia","family":"Youkhanna","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristen D.","family":"Beach","sequence":"additional","affiliation":[{"name":"University of North Carolina Charlotte, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keith","family":"Widaman","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,5,28]]},"reference":[{"key":"bibr1-0022219420922839","doi-asserted-by":"crossref","unstructured":"Applebee A. 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