This paper explores what happens to similar groups of children educated in different school districts. In this case, the "twins" in the study are groups of students who live in the same state in similar geographies and who share certain demographic characteristics. For this report, "twin districts" have very similar sizes and…

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…

Describes school-level K-12 revenue and expenditure data collection in California, Texas, Florida, and Minnesota. Neither California nor Minnesota collects school-site fiscal data. Florida's highly advanced district and school-level data collection system has inconsistently reported standardized test scores. Texas has developed a good database to…