Question

In a 2 x 2 x 3 design with 120 participants equally distributed across the conditions.

How many participants are in each cell ( show how you get this calculation)?

Answer 1

A within subject design is where the same set of participants are exposed to esch condition in the experiment.

So in a 2×2×3 factorial design, there are 12 test conditions, had it been between subject design, each of these 12 conditions would require a different set of 10 subjects like around 120 participants

However for a within subject design, the same 10 participants will be present in all the conditions, so the total number of participants required will be just 10.

#10   participants are in each cell