Synergistic Impacts of Expansions in Pre-K Access and School Funding on Student Achievement: Evidence from California’s Transitional Kindergarten Rollout

This paper investigates the extent to which expansions in public pre-K and increases in K12 funding improve student learning trajectories and narrow achievement gaps. I link school-and student-level information on public preschool participation with longitudinal student data for all public school students in California. The research design exploits Transitional Kindergarten's (TK's) age eligibility cutoffs and the 2013-2019 staggered implementation of California's school funding reform. This quasi-experimental variation is combined to investigate interactive effects between TK attendance and school resources in elementary school. I find positive synergistic effects of TK and elementary school spending on math and reading achievement.