A researcher wants to run a 2 x 3 mixed factorial design. The first factor is the within-subjects. The second factor is the between-subjects. If the researcher wants 20 observations per cell, how many participants will he need in total?

3*20 = 60.

Step-by-step explanation:

Given:

A researcher wants to run a 2 x 3 mixed factorial design.

1st factor is the subject within

2nd factor is the subject between

Now to calculate how many participants will he need in total

(greater of 2,3) * 20

that is

=3*20 = 60.