Table 2.

Mean values and standard deviations (in parentheses) of n obtained (n obt) from 100 simulations of absolute identification experiments in which the mean locations of the stimuli along the decision axis were determined in the absence of gain control. Also shown are the hypothetical values of n used in the generation of these simulations (n start). For stimulus sets containing five elements (four criteria), the average value of the standard deviation of the Laplace distributions, σ ₄, was found to be 1.189 σ ₃. The average values of dB_c, dB_n, and s in this model were 7.79, –46, and 4.99, respectively

Experiment or Participant	Stimulus sets (Elements of the set are the intensity values of the tones in dB SPL)	n obt	n start
Parker et al. (2002)	{25, 30, 35, 40}, {25, 30, 35, 40, 45},	0.27 (.01)	0.27
	{25, 30, 35, 40, 50}, {25, 30, 35, 40, 55},
	{25, 30, 35, 40, 60}, {25, 30, 35, 40, 70},
	{25, 30, 35, 40, 80}, {25, 30, 35, 40, 90},
	{84.5, 86.5, 88.5, 90.5}, {40, 84.5, 86.5, 88.5, 90.5},
	{50.5, 84.5, 86.5, 88.5, 90.5}, {60.5, 84.5, 86.5, 88.5, 90.5}, {70.5, 84.5, 86.5, 88.5, 90.5}, {75.5, 84.5, 86.5, 88.5, 90.5}, {80.5, 84.5, 86.5, 88.5, 90.5}, {82.5, 84.5, 86.5, 88.5, 90.5}
P1	{25, 30, 35, 40}, {25, 30, 35, 40, 50}, {25, 30, 35, 40, 80}	0.20 (.02)	0.20
P2	{25, 30, 35, 40}, {25, 30, 35, 40, 50}, {25, 30, 35, 40, 80}	0.38 (.15)	0.36
P3	{25, 30, 35, 40}, {25, 30, 35, 40, 50}, {25, 30, 35, 40, 80}	0.21 (.03)	0.22
P4	{25, 30, 35, 40}, {25, 30, 35, 40, 50}, {25, 30, 35, 40, 80}	0.12 (.02)	0.12
P5	{25, 30, 35, 40}, {25, 30, 35, 40, 50}, {25, 30, 35, 40, 80}	0.27 (.06)	0.27
P6	{25, 30, 35, 40}, {25, 30, 35, 40, 50}, {25, 30, 35, 40, 80}	0.45 (.23)	0.38