The transition into kindergarten is important because it sets the foundation for future academic achievement. Identifying a child's readiness at school entry and intervening appropriately facilitates positive academic outcomes. The Kindergarten Student Entrance Profile (KSEP) is a school district developed universal screening measure used to assess children's readiness for school. This action research study reports on the psychometric proprieties of the KSEP, including its prediction of academic achievement through grade 2. Results suggest promising psychometric characteristics. Discussion focuses on uses of the KSEP for school readiness evaluations and future research. (Contains 1 table and 1 figure.)