There are a growing number of large-scale educational randomized controlled trials (RCTs). Considering their expense, it is important to reflect on the effectiveness of this approach. We assessed the magnitude and precision of effects found in those large-scale RCTs commissioned by the UK-based Education Endowment Foundation and the U.S.-based…

Widening participation (WP) in higher education (HE) is an increasingly important policy issue, with interventions to increase participation from minority ethnic, low-income and other under-represented groups undertaken in HE sectors in many countries. In the UK there is a large amount of WP activity but a lack of robust evidence of its…