Table 2. Characteristics and pre-test scores of control participants, amusic participants, and the amusic participants divided into two subgroups.

	Controls (n = 20)	Amusics (n = 20)	Amusics with abnormal pitch discrimination thresholds (n = 8)	Amusics with normal pitch discrimination thresholds (n = 12)
	M (SD)	M (SD)	M (SD)	M (SD)
Age (years)	19.94 (1.84)	20.56 (2.29)	20.55 (2.47)	20.58 (2.27)
Education (years)	14.23 (1.46)	14.58 (2.40)	15.19 (3.09)	14.17 (1.85)
Musical training (years)	0.75 (1.21)	0.30 (0.92)	0.13 (0.35)	0.42 (1.16)
IQ (scaled score)	105.95 (11.66)	100.45 (10.36)	101.25 (13.51)	99.92 (8.27)
Reading (scaled score)	104.05 (7.21)	103.20 (9.60)	103.38 (11.90)	103.08 (8.31)
Melodic MBEA (%)
Scale	91.33 (5.56)	73.67 (12.14)	73.75 (13.02)	73.61 (12.10)
Contour	83.83 (7.11)	62.83 (7.82)	60.42 (6.77)	64.45 (8.33)
Interval	83.00 (8.01)	63.16 (8.62)	64.58 (6.89)	62.22 (9.78)
Composite	86.89 (5.03)	66.55 (4.47)	66.25 (4.89)	66.76 (4.38)