Table 4.

Preference scores for screening test attributes, transformed from rankings

Attribute (score range)	Item	Mean score (SD)	df	F	η2
Sample type (0–3)	Saliva	2.18 (0.87)	2, 1,280	152.88a	0.193
	Blood	2.12 (0.81)
	Stool	1.56 (0.87)
Sample collection location (0–3)	Home	2.08 (0.97)	2, 1,280	68.71a	0.097
	Doctor’s surgery	2.06 (0.80)
	Pathology center	1.70 (0.84)
Test performance (0–3)	90%	2.84 (0.60)	2, 1,280	3,951.35a	0.861
	80%	1.94 (0.45)
	70%	1.03 (0.40)
Test cost (0–3)	$30	2.52 (0.87)	2, 1,280	744.97a	0.538
	$50	2.04 (0.58)
	$80	1.23 (0.71)
Test attributes (0–4)	Performance	3.55 (0.92)	3, 1,279	905.49a	0.680
	Convenience	2.37 (0.94)
	Sample type	2.34 (1.10)
	Cost	1.71 (1.04)

Note:

^aP < 0.001.