Table 3.

Mean and SD of d' and c measured by signal detection theory.

		Scale	Contour	Interval	Rhythm	Meter	Memory	Average	Pitch average
d'	Mean	1.635	1.957	1.605	1.760	0.959	1.928	1.865	1.761
	SD	0.977	0.969	0.998	0.862	1.095	0.971	1.046	1.182
	z skew	−0.195	−0.464	−0.021	−0.009	−0.200	−0.579	0.458	0.371
	z kurtosis	−0.978	−1.349	−1.387	−1.476	−0.072	−0.852	−0.959	−1.457
c	Mean	0.004	−0.044	−0.205	0.073	−0.263	−0.444	−0.063	−0.151
	SD	0.320	0.284	0.395	0.335	0.468	0.302	0.263	0.397

MBEA, Montreal Battery of Evaluation of Amusia; SD, standard deviation.