Wilder Research, in conjunction with the Invest Early leadership team and staff, is conducting a longitudinal and cost-benefit evaluation. Annual reports document and assess implementation of Invest Early and outcomes for the service system, families, and children. Invest Early is an effective program in preparing low-income students with multiple risk factors for school success when delivered in sufficient quantity. Highlights from this year five evaluation summary include: (1) Home learning environments, which are associated with higher school readiness scores, improve significantly for Invest Early families during their participation; (2) Kindergarten entry results show that Invest Early closed the proficiency gap this year relative to higher-income students and exceeded the low-income comparison group by nearly 2 to 1 (57% vs. 29% proficient, using the new 75 percent cut-off for overall proficiency); and (3) Based on MCA-II reading and math tests in 2009-10 during their third grade year, Invest Early children have better outcomes than a comparison group of children from low-income families with no Invest Early, Head Start, or School Readiness program experience. [For "Invest Early: Early Childhood Initiative. Year Three Evaluation Summary," see ED612503.]