One of the most controversial aspects of NCLB is its performance requirements for subgroups within the general student population. In this article, the authors examine the implications of these requirements for English-language learners and offer recommendations to help states, districts, and schools facilitate the progress of these students.

Research reports major concerns over classification and measurement for students with limited English proficiency (LEP). A poor operational definition of the English language proficiency construct and validity concerns about existing language proficiency tests are among these issues. Decisions on including LEP students in large-scale assessments…