The Two by Two Crossover Design

The two by two crossover design is very simple, but it's like elegant. So then you present these to your participants and record their brands with Meg or MEG as you like it. And I kind of wanted to, like, in terms of the results, I wanted to start with one of the simpler ones. It just kind of shows that it's all working, which is the frequency effects that you observed. Can you remember how it comes out? Do you remember there are frequency effects, but yeah, no-this is definitely a very pre pandemic work.