As part of their Straight Talk on Evidence initiative, the Laura and John Arnold Foundation has released a new evidence report on KIPP Charter Schools in the US. The report summarises the evidence from two randomised controlled trials that respectively evaluated the effectiveness of KIPP elementary schools and KIPP middle schools as implemented on a sizable scale.
KIPP (Knowledge is Power Program) is a nationwide network of charter schools that serve a predominantly low-income, minority population of pupils from pre-K (reception) through to secondary school. Pupils are admitted through a lottery system. KIPP schools in the two randomised studies were located in nine US states and the District of Columbia.
According to the evidence report, the KIPP elementary and middle schools in the studies both produced sizable, statistically significant effects on reading and maths achievement—increases of between 5 and 10 percentile points (compared to the control group)—as measured two to three years after random assignment.
The report notes that a longer-term follow-up of the two KIPP RCTs could be a valuable addition to the research.
Source: KIPP charter schools—strong, replicated evidence of sizable effects on student achievement (May 2018), Laura and John Arnold Foundation