o What works best in education ?
This research from John Hattie can and should be a game changer how we are as a school and classroom. Are we placing our efforts in the winning channels? Notice what most schools do verses what actually works!
John Hattie developed a way of synthesizing various influences in different meta-analyses according to their effect size (Cohen’s d). In his ground-breaking study “Visible Learning” he ranked 138 influences that are related to learning outcomes from very positive effects to very negative effects. Hattie found that the average effect size of all the interventions he studied was 0.40. Therefore he decided to judge the success of influences relative to this ‘hinge point’, in order to find an answer to the question “What works best in education?”
The Visible Learning research synthesises findings from 1,400 meta-analyses of 80,000 studies involving 300 million students, into what works best in education.