Journal of Deaf Studies and Deaf Education Advance Access published online on June 29, 2009
The Journal of Deaf Studies and Deaf Education, doi:10.1093/deafed/enp013
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Investigating the Technical Adequacy of Curriculum-Based Measurement in Written Expression for Students Who Are Deaf or Hard of Hearing
Chung Yuan Christian University, Taiwan
University of Minnesota, Minneapolis
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This study investigated the technical adequacy of curriculum-based measures of written expression (CBM-W) in terms of writing prompts and scoring methods for deaf and hard-of-hearing students. Twenty-two students at the secondary school-level completed 3-min essays within two weeks, which were scored for nine existing and alternative curriculum-based measurement (CBM) scoring methods. The technical features of the nine scoring methods were examined for interrater reliability, alternate-form reliability, and criterion-related validity. The existing CBM scoring method—number of correct minus incorrect word sequences—yielded the highest reliability and validity coefficients. The findings from this study support the use of the CBM-W as a reliable and valid tool for assessing general writing proficiency with secondary students who are deaf or hard of hearing. The CBM alternative scoring methods that may serve as additional indicators of written expression include correct subject–verb agreements, correct clauses, and correct morphemes.
Correspondence should be sent to Shu-Fen Cheng, Department of Special Education, Chung Yuan Christian University, 200 Jung-Bei Road, Chung-Li City, 32023 Taiwan (e-mail: chen0562{at}cycu.edu.tw).
Received February 6, 2009; revised May 27, 2009; accepted May 29, 2009