TABLE III. The Optimal Group Size of the Dorfman Two-Stage Algorithm With Different Values of the Prevalence Rate and the Correlation Coefficient .

	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9
1%	11	11	12	12	13	15	16	19	23	32
2%	8	8	8	9	10	11	12	14	16	23
3%	6	7	7	7	8	9	10	11	14	19
4%	6	6	6	7	7	8	9	10	12	17
5%	5	5	6	6	6	7	8	9	11	15
6%	5	5	5	6	6	6	7	8	10	14
7%	5	5	5	5	6	6	7	8	9	13
8%	4	4	5	5	5	6	6	7	9	12
9%	4	4	4	5	5	5	6	7	8	12
10%	4	4	4	4	5	5	6	7	8	11