Table 8.

Means and SD of d^′ and c for the group tested in the laboratory, including cut-off scores and percentage of amusics and controls categorization based on PC and z-scores used for normality analysis.

		Scale	Contour	Interval	Rhythm	Meter	Memory	Average	Pitch Average
c	Mean	0.01	0.15	0.29	–0.05	–0.22	–0.21	–0.00	0.15
	SD	0.55	0.54	0.48	0.55	0.34	0.43	0.29	0.46
d′	Mean	2.33	2.25	2.16	2.65	2.81	3.23	2.25	2.25
	SD	0.84	0.90	0.95	0.90	1.28	0.81	0.66	0.73
	z skew	–0.51	0.69	0.28	–0.19	–0.99	0.32	1.56	–0.01
	z kurtosis	1.28	–1.30	0.10	–1.64	–1.70	–1.15	0.61	0.15
% below cut-off score: Mean–1 SD		15.32	18.02	13.51	25.23	18.92	17.12	14.41	14.41
% overdignosis: amean–1 SD		1.80	4.50	1.80	2.70	0.00	1.80	2.70	1.80
% underdiagnosis: Mean–1 SD		2.70	0.00	0.00	7.21	11.71	11.71	1.80	2.70