The UIC Center for Urban Education Leadership (CUEL) brief builds from recent CUEL analysis of schools that have proven most challenging to improve in Chicago Public Schools (CPS). In this research brief, CUEL researchers make the case for "high churn" schools to adopt an evidence-based stance as they seek to address the issue of chronic student absence, one of the key factors that shape the learning experiences of a portion of students in "high churn" schools. [This report was published by the University of Illinois at Chicago College of Education's Center for Urban Education Leadership.]