This appendix provides additional details on the underlying data, statistical models, and results presented in "The Big Lift Descriptive Analyses: Progress across Three Kindergarten Classes." First the authors describe how they created each control and outcome variable and its source (e.g., parent report), followed by an overview of the…

The Big Lift™ (Big Lift) is a preschool-third-grade collective impact initiative in San Mateo County, California. The initiative is a partnership of the County of San Mateo, San Mateo County Office of Education, and the Silicon Valley Community Foundation. Launched in 2012, the initiative aims to boost children's reading proficiency by third grade…

Minnesota Reading Corps (MRC) is the largest AmeriCorps State program in the country. The goal of MRC is to ensure that students become successful readers and meet reading proficiency targets by the end of the third grade. Starting in 2011, the "Corporation for National and Community Service" (CNCS) sponsored a randomized controlled…

Most studies of educational organizations have focused on structural features of schools, such as size, resources, and infrastructure. Research on schools' organizational culture is more sparse. Yet, these studies have suggested that the organizational culture of schools can have important implications for teaching practices and student outcomes.…