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Autor/inn/en | Fan, Chung-Hau; Hansmann, Paul R. |
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Titel | Applying Generalizability Theory for Making Quantitative RTI Progress-Monitoring Decisions |
Quelle | In: Assessment for Effective Intervention, 40 (2015) 4, S.205-215 (11 Seiten)
PDF als Volltext |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 1534-5084 |
DOI | 10.1177/1534508415573299 |
Schlagwörter | Generalizability Theory; Response to Intervention; Progress Monitoring; Decision Making; Grade 1; Elementary School Students; Oral Reading; Reading Fluency; Error of Measurement; Reliability; Curriculum Based Assessment; Dynamic Indicators of Basic Early Literacy Skills (DIBELS) |
Abstract | Language in the Individuals With Disabilities Education Improvement Act (IDEIA) allows the use of response-to-intervention (RTI) methodology in the identification of specific learning disabilities. However, there is no consensus on decision rules using curriculum-based measurement of oral reading fluency (CBM-R) for defining responsiveness. The purpose of this article is to describe how to apply generalizability (G) theory for making quantitative high-stakes RTI decisions. A sample of 68 first-grade students (36 females and 32 males) was randomly administered the first-grade Dynamic Indicators of Basic Early Literacy Skills oral reading fluency probes and correct words per minute (CWPM) were calculated for conducting both a generalizability (G) study and a decision (D) study using G theory. The results showed that the average raw scores (CWPM) across 20 probes encompassed a wide range from a low of 69 CWPM to a high of 88 CWPM. In addition, 90.2% of the variance was due to student reading skill, 7.0% was due to unaccounted sources of error, and only 2.8% was due to passage or probe variability. Also, the increasing number of probes administered (from 1 to 9) considerably reduced the values of standard error of measurement and increased the reliability coefficients. An example is provided to demonstrate how to apply G theory in using CBM-R data to guide psychometrically valid RTI decisions at the individual student level. (As Provided). |
Anmerkungen | SAGE Publications and Hammill Institute on Disabilities. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
Update | 2020/1/01 |