500 word question, 2 pages, APA format

question for my Psychology Experimental Class:

Ivan adopted a 3 x 4 mixed factorial design to study the effects of A and B on a dependent variable. Factor A (IV #1) is a between-subjects variable. Factor B (IV #2) is a within-compltete counterbalancing. Please answer the following questions and justify your answer.

(a) how many groups of participants are required in Ivan’s experiment?

(b) how many conditions need to be counterbalanced?

(c) how many sequences need to be enumerated? why?

(d) If Ivan wanted to include five participants for each sequence, the, how many participants are required in his experiment?