| Project/Area Number |
19520535
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Foreign language education
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| Research Institution | Fukuyama Heisei University |
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Principal Investigator |
OZASA Toshiako Fukuyama Heisei University, 経営学部, 教授 (30041007)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUI Masayasyu 福山平成大学, 経営学部, 教授 (20199186)
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| Research Collaborator |
WEIR George R.S. Strathclyde University, Department of Computer and Information Sciences, U. K, .Lecturer
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 英語教育 / 英語リーダビリティ / 日本人英語学習者 / リーダビリティ / 指標開発 / 非線形分析 / 多重回帰分析 |
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| Research Abstract |
The present study aimed to develop a readability index with a powerful explanatory power and a computer program for estimating readability of English texts of Japanese EFL textbooks. In developing Ozasa-Fukui Year Level index, Ver. 2.1, non-linear analyses were computed using a linear function Diff (Diff=0.0995*Words/S+0.4302*Syllables/W+0.9800*WordDiff/W+0.0633*IdiomDiff/S+0.2815) as independent variable and three experts' readability evaluation of 916 sentences as a dependent variable. The computation yielded a non-liner function expression which proved to be much more powerful in predictive power or explanatory power (r^2) than the other currently used linear functions. NewDiff=4.6579*exp (-17.7116*0.3716^Diff)+1 (r^2=.8217) [Diff=0.0995*Words/S+0.4302*Syllables/W+0.9800*WordDiff/W+0.0633*IdiomDiff/S+0.2815]. A computer program was also developed for computing readability using this index.
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