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Laitusis, Cara Cahalan; Maneckshana, Behroz; Monfils, Lora; Ahlgrim-Delzell, Lynn – Journal of Applied Testing Technology, 2009
The purpose of this study was to examine Differential Item Functioning (DIF) by disability groups on an on-demand performance assessment for students with severe cognitive impairments. Researchers examined the presence of DIF for two comparisons. One comparison involved students with severe cognitive impairments who served as the reference group…
Descriptors: Test Bias, Test Items, Autism, Performance Based Assessment
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Abedi, Jamal – Journal of Applied Testing Technology, 2009
English language learners with disabilities (ELLWD) face many challenges in their academic career. Learning a new language and coping with their disabilities create obstacles in their academic progress. Variables relegating accessibility of assessments for students with disabilities and ELL students may seriously hinder the academic performance of…
Descriptors: Reading Achievement, Second Language Learning, Disabilities, Classification