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Session Submission Type: Symposium
English language learners (ELLs) perform substantially lower in content-based assessments particularly those with higher level of language demand. Results of studies on the assessment and accommodations of ELL students clearly suggest that unnecessary linguistic complexity of assessments as a source of systematic error may negatively impact the reliability of assessments for ELL students and as a source of construct irrelevant affects validity of the assessments for ELLs (see, for example, Abedi, 2010). Therefore, the limited English proficiency may create unequal opportunities for students to fully demonstrate what they know. To level the playing field, legislations require accommodations—changes in the test process, in the test itself, or in the test response format.
Effectiveness, Validity, and Comparability of Accommodated and Nonaccommodated Assessments for English Language Learner Students in NAEP - Jamal Abedi, University of California - Davis
Investigating the Effects of Direct Linguistic Support Accommodations for English Language Learner Students on a Mathematics Assessment - Mikyung Kim Wolf, ETS
Comparing the Performance of English Language Learners and Non-English Language Learners on Test Accommodations: A New Index to Evaluate Differential Boost - Maria J. Pennock-Roman, MPR Psychometric and Statistical Research Consulting; Charlene Rivera, The George Washington University
Students Response Processes as Validity Evidence for the Accommodations for English Language Learners - Maria Martiniello, Tomas Rivera Policy Institute