Table 2.

Results of the threshold measurements during Test and Retest for QUEST and qYN.

Procedure	Tastant	N	Session	Threshold in ${log}_{10}$ mM
				mean	min	max	SD
QUEST	Citric Acid	37	Test	−0.141	−1.564	1.350	0.621
			Retest	−0.256	−1.540	1.385	0.666
	Sodium Chloride	38	Test	1.140	−0.417	2.495	0.631
			Retest	1.069	−0.432	2.100	0.544
	Quinine−HCl	38	Test	−1.737	−3.514	0.496	1.101
			Retest	−1.889	−3.514	0.339	0.953
	Sucrose	38	Test	1.054	−0.592	2.414	0.705
			Retest	1.089	−0.563	2.194	0.660
qYN	Citric Acid	37	Test	−0.446	−1.807	0.812	0.563
			Retest	−0.558	−1.508	0.574	0.598
	Sodium Chloride	36	Test	0.785	−0.457	2.052	0.607
			Retest	0.831	−0.369	2.222	0.571
	Quinine−HCl	35	Test	−1.974	−3.409	0.239	0.952
			Retest	−1.980	−3.369	0.091	0.962
	Sucrose	36	Test	0.871	−0.613	2.243	0.677
			Retest	0.765	−0.742	1.881	0.669