Desrumaux and colleagues conducted a study to determine how evaluating a job applicant varies by the applicant's gender and physical appearance. For the purposes of chapter 10, the authors of the textbook focused on two IVs

From the research matrix below, how many participants would be needed for a between subjects factorial design if you wanted to have 10 participants in each condition?
Male Male
Attractive Unattractive
Female Female
Attractive Unattractive

a. 10
b. 20
c. 30
d. 40

D