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Savmanbanans (talk | contribs) →Vocabulary Frequency Lists: Included the final sentences starting with "A popular strategy..." and used a new source to back up information. Included this information to relate the historical references to something updated that shows the growth of vocabulary teaching methods. |
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==Early Children's Readability Formulas==
In 1923, Bertha A. Lively and [[Sidney L. Pressey]] published the first reading ease formula. They were concerned that junior high school science textbooks had so many technical words
After the Lively–Pressey study, people looked for formulas that were more accurate and easier to apply. By 1980, over 200 formulas were published in different languages.<ref>[http://files.eric.ed.gov/fulltext/ED490073.pdf]{{Cite book |last=DuBay |first=William H |title=The Principles of Readability |year=2004 |pages=2}}</ref>{{citation needed|date=July 2017}} In 1928, Carleton Washburne and Mabel Vogel created the first modern readability formula. They validated it by using an outside criterion, and correlated .845 with test scores of students who read and liked the criterion books.<ref name="DuBay2">[https://files.eric.ed.gov/fulltext/ED506404.pdf The Classic Readability Studies, William H. DuBay, Editor (chapter on Washburne, C. i M. Vogel. 1928).]</ref> It was also the first to introduce the variable of interest to the concept of readability.<ref name="Washburne">Washburne, C. and M. Vogel. 1928. "An objective method of determining grade placement of children's reading material. ''Elementary school journal'' 28:373–81.</ref>
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