Video: Next Steps Experiments
These materials will get you a few steps ahead of your students
Table of Contents
Videos on this page
- Applying randomisation tests to proportions and more than 2 groups
- Out of the Fog and into Power (the concept of power)
Article off this page
- (significance tests)
Percentages and Multiple groups (Applied to proportions/percentages in 2- and 3-groups situations) [7:48]
The underlying ideas of the randomisation test can be applied in a variety of contexts. We’ll show you how to use it for percentages and extend it to considering more than two groups.
[Illustrated transcript (pdf)]
Out of the Fog and into Power (Power, Type I error and “sample size” [8:27]
When are statistical tests good at detecting when true treatment differences exist and when are they bad at it? We’ll introduce the concept of the “power” of a statistical test and Type 1 errors – falsely concluding that “true differences” exist when they don’t exist at all!
