4 min read
Standardised Tests 101 – how and why tests are standardised
Standardising a test score is fairly straightforward and I walked readers through the process here. As I said, however, “deciding whether test scores...
Effect size
4 min read
Systematic reviews and meta-analyses – what’s all the fuss?
Should we be using systematic reviews and meta-analyses as teachers and school leaders to support the decisions we make, or is that a luxury? How do...
3 min read
Where is the value in meta-analysis?
Before I trained as a teacher, I worked as a researcher, investigating the effect of phytoplankton processes in the ocean. It appeared that in...
2 min read
Comparing apples with oranges
How do you compare apples with oranges? Or even apples with oranges with cherries with bananas with peaches? This isn’t a joke question that has a...
4 min read
What should we do about meta-analysis and effect size?
By Rob Coe In part 1 of this series of blog posts, I set out some of the recent criticisms that have been made by researchers such as Wiliam, Simpson...