The purpose of this study was to assess the effectiveness of Uncommon Schools in a turnaround setting. Uncommon was awarded a 2016 grant from the U.S. Department of Education's Investing in Innovation Fund (i3) to support TurnNJ, a project intended to support Uncommon's whole-school turnaround efforts in Camden and Newark, New Jersey. The study used a propensity score matching approach to examine the effects of two TurnNJ elementary schools and one TurnNJ middle school on student outcomes. The TurnNJ schools produced substantial positive effects on student achievement in math and English language arts. Additional research is needed to examine whether the TurnNJ school model could be successful in other contexts and to assess the impacts of the model on other outcomes beyond academic achievement. [The report was submitted to Uncommon Schools.]