This paper examines the "ecological validity" of a randomized controlled trial (RCT) conducted in 42 high schools to measure the impact of a content literacy program. This study of comparable schools implementing the same program in different contexts highlights characteristics that are often not attended to in rigorous effectiveness…

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 transition into high school is a critical point in the educational pipeline, and ninth-grade can be characterized as one of its leakiest junctures. This policy brief examines how some states and districts are currently easing the transition into high school for students. It focuses on five key challenges that states, districts and schools…