Is your school full of hedgehogs or foxes? Hedgehogs are people who are committed to certain ideas, and will stick with them even when they've been shown to fail. Foxes are people know lots about everything, but not everything about anything – they are pragmatic, prone to self-doubt and willing to admit when they are wrong. In his 2005 study Expert...

I have previously drawn attention to differences in expert opinion over the usefulness of statistical significance testing, particularly in regard to randomised controlled trials (RCTs). Now it's time to look at what can go wrong with RCTs, and the questions you need to ask when judging the trustworthiness of the associated research findings. What ...

One of the challenges faced by school research leads is the need to engage with colleagues who have different views about the role of evidence in bringing about improvement. In fact, it's not just the role of evidence that's likely to be debated – you might even face differing views about the evidence itself. In 2010, two researchers – Brendan Nyha...

What is it? Lesson Study is a continuous professional development (CPD) programme, based on an approach widely used in Japan. Teachers work together in small groups – usually threes – to investigate, plan and then teach 'research lessons' that meet a shared learning goal. Colleagues observe each other in these lessons and give feedback on...

A data analysis of the effect of coaching on teachers' practice and students' outcomes caused a bit of a stir recently. The meta-analysis of 37 studies found that coaching was an effective method of professional development for teachers. It is worth noting that coaching was most effective in small groups, however. In fact, it was half as effective ...