“…Despite these important uses of ELP assessments, which have been in place for the past decade, it is only recently that empirical studies have become available to validate the uses of these ELP assessments. Whereas test developers’ initial validation work focused on evaluating the technical qualities of the ELP assessments during the development stages (e.g., reliability, differential item functioning; see National Research Council, , and Wolf, Farnsworth, & Herman, , for a review of ELP test developers’ validity evidence), a few recent studies have investigated the relationship between EL students’ performance on ELP assessments and assessments of content such as English language arts and mathematics (e.g., Cook, Linquanti, Chinen, & Jung, ; Kim & Herman, ; Parker, Louie, & O'Dwyer, ; Thompson, ). In investigating the relationship between EL students’ ELP assessment performance and content assessment performance, previous studies have mainly focused on either (1) predicting EL students’ content assessment performance using their ELP assessment performance or (2) identifying an ELP performance standard to determine EL students’ readiness to exit EL status.…”