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…

Increasing evidence indicates that individuals with Intellectual Disabilities (ID) might benefit from phonics-based reading instruction. However, research and instruction in this field has predominantly focused on sight word reading. Models for complex interventions recommend that feasibility research be conducted prior to conducting randomised…

Beginning in 2002, researchers developed, implemented, and evaluated the efficacy of an English reading intervention for first-grade English learners using multiple randomized control trials (RCTs). As a result of this efficacy work, researchers successfully competed for an IES Goal 4 effectiveness study using the same intervention. Unlike the…

The Hampshire Hundreds project was a local authority-led intervention which brought together lead teachers from Hampshire primary schools to provide them with evidence and support for effective teaching strategies to decrease the attainment gap between disadvantaged pupils (aged 9-11) and their peers. The intervention involved a facilitator…