Early literacy is a key developmental milestone for succeeding in school, yet far too many children in America, particularly the most socially vulnerable, are not meeting this key milestone. For example, NAEP data from 2013 shows that over 80% of Black and Latinx students are below proficient in reading by the end of fourth grade, as compared to…

Previous studies about ELs have reported data on active English Learners--defined as those students who have not yet reached proficiency on a state English test--at a specific moment in time. This study, for the first time, analyzed the long-term trajectories of 18,000 CPS students who began kindergarten as ELs and followed their progress all the…