We tested proliferation of 4 types of cells (between-subject factor) during 3 consequent time points (within-subject factor). All test were done in 4 blocks with 1 plate of each type of cells in each block (so 4 independent experiments with n = 1 of each group in each block). Blocks were separated by each other by several weeks. Of course blocks differ between each other a little, but general differences between proliferation rate of different cell lines are evident. I use STATISTICA (Statsoft). How should I enter a program for correct analysis?
Without addition of blocks as a factor there is no differences between groups due to differences between blocks. I tried to add
block as an independent factor add got it as a factorial design. I used interaction of
block x group as the between-subject MS error term for MS group (between-subject factor) and interaction of
block x group x time point as the within-subject MS error term for MS time and MS
time x group (within-subject tests). Was I correct? (I'm confused by very high F-ratios in F
time point x group due to very low MS
block x group x time. Generally at each block differences are evident, but it is confusing...).