Table 1.

Efficiency of two- and three-stage algorithms with and for testing all pools (regardless of size) and individuals. H2 and H3 (hierarchical) algorithms are from Tebbs and others (2013) and Hou and others (2017), respectively. Pool sizes are chosen to minimize the expected number of tests per individual. The maximum allowable array size for ATM is . For Cases 1–4, the marginal disease probabilities and are equal. For Cases 5–8, the marginal disease probabilities are unequal

		Stages	Algorithm	Efficiency			Stages	Algorithm	Efficiency
				0.594					0.591
Case 1		2		0.530	Case 5		2		0.537
		3		0.572			3		0.564
				0.543					0.544
		2		0.433					0.431
Case 2				0.344	Case 6		2		0.352
		3		0.371			3		0.368
				0.354					0.356
				0.345					0.342
Case 3		2		0.258	Case 7		2		0.260
		3		0.273			3		0.268
				0.282					0.279
				0.209					0.208
Case 4		2		0.123	Case 8		2		0.128
		3		0.135			3		0.134
				0.150					0.150