chapter  3
18 Pages

The Testing of English Language Learners as a Stochastic Process: Population Misspecifi cation, Measurement Error, and Overgeneralization


Obtaining dependable measures of academic achievement for students who have limited profi ciency in the language in which they are tested is a formidable challenge for researchers and practitioners. Unfortunately, the trend of including English language learners (ELLs) in large-scale assessments has not been accompanied by effective approaches to minimize construct-irrelevant score variance due to language issues.