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    The Effect of the Cut Off Rules of the Bateria Woodcock-Munoz Pruebas de Habilidad Cognitiva-Revisada on the Identification and Placement of Monolingual and Bilingual Spanish Speaking Students in Special Education: A Cross-cultural Study

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    Author
    Chacon, Vanessa
    Issue Date
    2007
    Keywords
    Test Validity
    Cut-off Rules
    Bateria Woodcock-Munoz
    Test Bias
    Intelligence
    Cross-cultural comparison
    Advisor
    Fletcher, Todd
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    This study was designed to investigate if the Batería Woodcock-Muñoz: Pruebas de Habilidad Cognitiva- Revisada is a valid cross-cultural tool to measure the cognitive ability students of three Spanish-speaking groups from two different Spanish-speaking countries. One group is represented by culturally diverse bilingual Spanish dominant students in Tucson, Arizona since there is an overrepresentation of bilingual students receiving special education services in all school districts in this area. The second group consists of monolingual Spanish-speakers from Costa Rica referred for special education. The third group constitutes monolingual Spanish speakers from Costa Rica performing at grade level.This research analyzed whether or not Memory for Sentences, a sub-test of Short Term Memory, Visual Integration and Picture Recognition sub-tests of Visual Processing in the Psycho-educational Batería Woodcock-Muñoz, is more difficult for the special education Spanish/bilingual population in Tucson than for the monolingual Spanish-speaking special education and grade level individuals in Costa Rica. Item p-value differences in each subtest were estimated and compared for all items for each subtest to detect if a major item difficulty order difference existed between Spanish-speaking groups that could be indicative of internal criteria of test bias. Results show that the item order of difficulty affects the tests' established cut off rules for both Costa Rican populations in the Memory for Sentences test, making it invalid for these populations; and that the Tucson sample group's performance is lower than that of both Costa Rican groups. In addition, both Visual Processing subtests are invalid for all groups compared since the item order of difficulty does not match the test item order, thus affecting the enforcement of the cut off rules and making these subtests invalid for these populations.Standardized assessments and intelligence trait are considered the results of mathematical and statistical expressions built on test developers' own cultural views and minds. They follow along the lines of the traditional reductionist assessment or scientific/medical models. As a result, it is concluded that bilingual populations will be at disadvantage because standardized assessment neither links assessment to familiar language, cultural relevant information, and experiences nor considers how the bilingual mind processes information.
    Type
    text
    Electronic Dissertation
    Degree Name
    PhD
    Degree Level
    doctoral
    Degree Program
    Special Education & Rehabilitation
    Graduate College
    Degree Grantor
    University of Arizona
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    Dissertations

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