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The Predictive Validity of CBM Writing Indices for Eighth-Grade Students
Janelle M. Amato*
and
Marley W. Watkins
* To whom correspondence should be addressed. E-mail: jamato{at}cresskillboe.k12.nj.us.
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Abstract |
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Curriculum-based measurement (CBM) is an alternative to traditional assessment techniques. Technical work has begun to identify CBM writing indices that are psychometrically sound for monitoring older students writing proficiency. This study examined the predictive validity of CBM writing indices in a sample of 447 eighth-grade students. Regression analyses revealed that simple fluency measures were not adequate for assessing secondary students writing. A more complex fluency measure, the number of correct punctuation marks, and an accuracy-based measure, the percentage of correct word sequences, were the best predictors of a written expression test for eighth-grade students. However, overall results of the current study provided only limited support for the use of CBM to assess writing skill at the secondary level.
First published on March 27, 2009 The Journal of Special Education 2009, doi:10.1177/0022466909333516

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