Skeptics of the KIPP (Knowledge Is Power Program) charter school network argue that these schools rely on selective admission, attrition, and replacement of students to produce positive achievement results. We investigate this using data covering 19 KIPP middle schools. On average, KIPP schools admit students disadvantaged in ways similar to other…

Randomized controlled trials (RCTs) are widely considered to be the gold standard in evaluating the impacts of a social program. When an RCT is infeasible, researchers often estimate program impacts by comparing outcomes of program participants with those of a nonexperimental comparison group, adjusting for observable differences between the two…

As a condition of its i3 grant, KIPP contracted with an independent evaluator (Mathematica) to address a key research question: does KIPP maintain its demonstrated effectiveness as it scales? While this question sounds simple enough in theory, it poses several methodological and practical challenges. This paper outlines some of those key…

Recent federal initiatives emphasize measuring teacher effectiveness and ensuring that disadvantaged students have equal access to effective teachers. This study substantially broadens the existing evidence on access to effective teaching by examining access in 29 geographically dispersed school districts over the 2008-2009 to 2010-2011 school…

This paper presents findings from the first national randomized study of the impacts of charter schools on student achievement, which included 36 charter middle schools across 15 states. The paper compares students who applied and were admitted to these schools through randomized admissions lotteries with students who applied and were not…

The Knowledge Is Power Program (KIPP) is a network of charter schools designed to improve the educational opportunities available to low-income families. KIPP schools seek to boost their students' academic achievement and, ultimately, prepare them to enroll and succeed in college. This paper provides the most thorough analysis to date of the…

In this set of four supplemental tables, the authors compare the baseline test scores of the treatment and matched control group samples observed in each year after KIPP entry (outcome years 1 to 4). As discussed in Chapter III, the authors used an iterative propensity score estimation procedure to calculate each student's probability of entering…

The Knowledge Is Power Program (KIPP) is a bold effort to create a network of charter schools designed to transform and improve the educational opportunities available to low/income families. KIPP schools seek to actively engage students and parents in the educational process, expand the time and effort students devote to their studies, reinforce…