U.S. history state assessments, discourse demands, and English Learners' achievement: Evidence for the importance of reading and writing instruction in U.S. history for English Learners

States are beginning to restructure their U.S. history assessments from previous multiple-choice based assessments to include written-response questions that have higher levels of academic language demands. These higher-order thinking and analytical items pose challenges to linguistically and culturally diverse students. The purpose of the current study is to investigate how the restructuring of a U.S. history state assessment is associated with English Learners' (ELs) achievement over time. The author incorporates 3 years of data from the Tennessee Department of Education, and utilizes multi-level modeling (Hierarchical Linear Modeling) to examine and compare the association between school percentage ELs and U.S. history achievement on Tennessee's (TN) U.S. history state assessment. Findings indicate that the restructuring of the TN U.S. history state assessment in the 2015-16 school year is significantly and inversely associated with ELs' achievement on this assessment. At the same time, there are no significant associations for the 2012-13 and the 2013-14 school years. This suggests a negative inverse association between the restructuring of the TN U.S. history state assessment and ELs' performance. In addition, this suggests that ELs' lack of U.S. history reading and writing ability may have contributed to the negative association.