The EEF efficacy and effectiveness projects are usually evaluated through a randomised controlled trial. This means that if you sign up, you’re randomly assigned to one of two groups:
•The ‘delivery’ group, who implement the approach being tested.
• The control group, where practice continues as normal.
This is the best way to find out the impact of the approach being tested.
“RCTs provide a robust way of comparing outcomes between a random group of schools that are selected to implement a certain practice and another random group of schools that do not implement the practice.”
