- control group
You may be thinking that this all sounds like some pretty difficult to understand mathematics.
On the contrary, one of the excitements about meta-analysis is that it makes some of the most complicated research incredibly simple to understand and to communicate to practitioners and the public.
In order to understand the meta-analytic results for outdoor education, one must understand what an ‘effect size’ is.
Explain ES using whiteboard (using normal curves, etc.)