텍스트 수준과 가독성: 한국어 학습 교재를 이용한 검증과 응용 = A Verification and Application of a Correlation between Text Levels and Readability Using Korean Learning Materials.

다국어 초록 (Multilingual Abstract)

Readability is commonly defined as a statistical scale for measuring the ease of reading and understanding a text. In this paper, we propose that paragraph length, sentence length, and word length are applicable to readability metrics for Korean texts. A correlation between these readability metrics and text levels is statistically analyzed using correlation analysis and simple and multiple linear regression analyses based on data as found in Korean learning materials. Paragraph length and sentence length show a steady upward slope with increasingly higher learning levels, while word length has a downward sloping relationship with the elementary level only. This correlation can also be applied to materials evaluation focused on the arrangement of learning levels and chapters with respect to readability. This applicability is demonstrated by two statistical methods. First, cluster analysis is the assignment of a set of texts by level or by chapter into subsets sharing similar readability scales to evaluate materials arrangements in accordance with readability scales. Second, regression model with a breakpoint (Baayen 2008) divides a linear relation of readability scales into two models having a different slope so that we can explore a trend change of readability scales in materials.

참고문헌 (Reference)

1 국립국어연구원, "한국어 학습용 어휘 선정 결과 보고서" 국립국어연구원 2003

2 이해영, "한국어 교재의 언어 활동 영역 분석" 12 (12): 469-490, 2001

3 최인숙, "텍스트의 언어적 난이도 측정 공식 비교 연구 - 초중고 교과서를 중심으로" 한국정보관리학회 22 (22): 173-195, 2005

4 최재완, "신문 경제기사의 독이성에 관한 연구" 경희대학교 1995

5 전정재, "독서의 이해" 한국방송출판(주) 2001

6 심재홍, "글의 이독성에 영향을 미치는 요인과 이독성 측정의 모형화에 관한 연구" 서울대학교 1991

7 진재관, "교과용 도서 평가 연구(III):평가 도구 개발 및 적용" 한국교육과정평가원 2009

8 진재관, "교과용 도서 평가 연구(II):평가모형 개발 및 평가기준 설정" 한국교육과정평가원 2008

9 Warming,E.O., "Touchstones for Textbook Selection" Phi Delta Kappan 1980

10 Flesch,R, "The art of plain talk" Harpers 1946

11 Gunning,R, "The Technique of Clear Writing" McGraw-Hill 1952

12 Stenner, A. J., "The Lexile Framework" Metametrics 1988

13 Cohen,J, "Statistical Power Analysis for the Behavioral Sciences (2nd ed.)" Academic Press 1988

14 Mclaughlin,H, "SMOG grading:A new readability formula" 12 (12): 639-646, 1969

15 Sticht,T.G, "Research towards the design, development and evaluation of a job-functional literacy training program for the US Army" 1973

16 Zenger,W.E., "Handbooks for Evaluating and Selecting Textbooks" Fearon Publishers 1976

17 Fry,E, "Fry's readability graph:Clarifications,validity and extension to level 17" 21 (21): 242-252, 1977

18 Kincaid, J. P., "Derivation of new readability formulas (Automated readability index, Fog count, and Flesch Reading Ease formula) for Navy enlisted personnel" Chief of Naval Technical Training: Naval Air Station Memphis 1975

19 Heilman, M., "Combining lexical and grammatical features to improve readability measures for first and second language texts" 460-467, 2007

20 Baayen,R.H, "Analyzing Linguistic Data: A Practical Introduction to Statistics Using R" Cambridge University Press 2008

21 Si,L., "A statistical model for scientific readability" 574-576, 2001

22 Spache,G, "A new readability formula for primary grade reading materials" 53 (53): 410-413, 1953

23 Akaike,H, "A new look at the statistical model identification" 19 (19): 716-723, 1974

24 Dale,E., "A formula for predicting readability" 27 : 37-54, 1948