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American Institutes for Research

The American Institutes for Research (AIR) is a not-for-profit corporation with more than 65 years of experience in education-related research and development projects. AIR has conducted a range of research studies related to prekindergarten services, school readiness programs, and K–12 initiatives in California.  AIR has served as the external evaluator for early education programs and initiatives; examined the implementation, impact, and capacity of teacher professional development programs; contributed to the development of early education systems, standards, and assessments; and evaluated curricula, classroom practices, and program quality through rigorous investigations and reviews. AIR continues to translate research to practice for the federal government and for state governments, including through a recently published synthesis of the condition of children and children’s services in California for the State Advisory Council on Early Learning and Care. AIR brings a unique combination of strengths and experience to the TK Study, including a strong group of researchers who have extensive experience in formative and summative evaluations of programs in California; expertise in early education as well as survey design and program quality assessment; and familiarity with available data on early care and education and student assessments at the elementary level.


Heising-Simons Foundation

The Heising-Simons Foundation is a private family foundation, established in 2007 by Mark Heising and Elizabeth Simons. The Foundation provides support to nonprofits in three primary areas: science, public policy, and education. One of the areas of focus for the Foundation’s education program is helping assure children make a successful transition to kindergarten, as emphasized by its support of this study. 


David and Lucile Packard Foundation

The David and Lucile Packard Foundation is a private family foundation created in 1964 by David Packard (1912–1996), co-founder of the Hewlett-Packard Company, and Lucile Salter Packard (1914–1987). The Foundation provides grants in the following broad program areas: Conservation and Science; Population and Reproductive Health; Children, Family, and Communities; and Local Grantmaking. The Children, Families, and Communities program strives to ensure that all children have the opportunity to reach their full potential, and provides funding in the areas of preschool, after-school and summer enrichment, and children’s health insurance, as emphasized by its support of this study.


First 5 California

First 5 California was created by voters under the California Children and Families Act (Proposition 10) to recognize that children's health and education is a top priority, especially in the early years of development. Since 1998, First 5 California has invested millions of dollars to design comprehensive programs that address the needs of children ages 0 to 5 and their families. Currently, its programs are centered around the child, parent, and teacher to improve early childhood outcomes in the areas of health and nutrition, early literacy and language development, quality child care, and smoking cessation.