At least 10 qualifying studies, with at least 5 rated “conclusive” and 75% of outcomes significantly positive, with an overall mean effect size of ES=+0.25. “Effect size” is the experimental-control difference divided by the standard deviation.
5-9 qualifying studies, with at least 3 rated “conclusive,” and 51% to 75% of outcomes significantly positive, with an overall mean effect size of at least +0.15.
Available in the UK
|Edison offers tools and resources to enable school improvement, programmes to support and help manage change, and support over time from experienced educational advisers , Their aim is to provide schools with focus, ideas and capacity. Their recommendations are based on research into best practice.|
|Available in UK||Yes|
UK website: www.edisonschools.co.uk (Training available)