The Early Warning System (EWS) is a tool developed by the National High School Center to collect data on indicators including attendance, GPA, course failures and credits earned. These indicators have been found to be highly predictive of a student’s likelihood of dropping out of high school in large, urban areas. The EWS tool was studied in two suburban schools. With the exception of attendance data, findings suggest that the indicators and suggested threshold for risk determination are predictive in suburban contexts.
This is an author-produced, peer-reviewed version of this article. The final, definitive version of this document can be found online at The Predictive Validity of the Early Warning System Tool, published by SAGE. Copyright restrictions may apply. DOI: 10.1177/0192636510380789
Johnson, Evelyn and Semmelroth, Carrie. (2010). "The Predictive Validity of the Early Warning System Tool". NASSP Bulletin, 94(2), 120-134.