Table 6.

Relative decrease in sample size given various scenarios for increasing the number of baseline (p) or follow-up (r) measures.

pre	post	mix	Change from		Change to		Sample size reduction
			No. of baseline measures (p)	No. of follow-up measures (r)	No. of baseline measures (p)	No. of follow-up measures (r)
0.7	0.7	0.5	1	1	1	4	30%
					4	1	10%
					4	4	40%
			4	4	4	7	7%
					7	4	3%
					7	7	10%
			7	7	7	14	5%
					14	7	2%
					14	14	8%
			14	14	28	28	4%
0.5	0.5	0.5	1	1	1	4	50%
					4	1	20%
					4	4	70%
			4	4	4	7	24%
					7	4	17%
					7	7	40%
			7	7	7	14	27%
					14	7	22%
					14	14	48%
			14	14	28	28	49%
0.9	0.9	0.8	1	1	1	4	21%
					4	1	14%
					4	4	35%
			4	4	4	7	5%
					7	4	3%
					7	7	8%
			7	7	7	14	3%
					14	7	3%
					14	14	6%
			14	14	28	28	3%