Hugo Lortie-Forgues, PhD
In recent years, there has been a growing number of randomized controlled trials (RCTs) conducted in education. For example, in the UK, the Education Endowment Foundation (EEF) has commissioned more than 191 trials since 2012. These trials are often expensive, many exceeding £500,000. Given their growing numbers, and their cost, it is important to reflect on how informative these trials are. Are educational trials able to determine whether an intervention should be implemented at scale or whether its use should be discontinued?
To address this question, I will present data from a study which reanalysed all the large-scale RCTs commissioned by the EEF (UK) and the NCEE (US) that were aimed at improving academic achievement in primary and secondary school students (141 completed trials, involving a total 1,222,024 students). In the seminar, I will present the conclusions of the study and discuss the different reactions the study has sparked.