You are constructing a data file for a 2-way mixed ANOVA design, with a between-subjects factor (experimental condition) with 2 levels, a repeated measures factor (time) with 3 levels, and 20 participants in each group. How many columns and rows will you need to record these data correctly in an SPSS datafile (do NOT count ID column or Variable Label row)? a. 4 columns and 40 rows. b. 4 columns and 30 rows. c. 5 columns and 20 rows. d. 6 columns and 20 rows