Table 2.

Group differences

	AP (n = 31)			RP (n = 33)			t test*
	Mean	SD	Range	Mean	SD	Range
AQ	20.48	6.05	10–36	16.88	5.44	6–27	t(60.3) = − 2.501; p = 0.015
MAD	41.37	36.49	9.8–200.57	296.84	86.12	91.04–467.52	t(43.7) = 15.614; p < 2.2e−16
SDfoM	52.31	44.96	7.41–235.69	329.77	122.77	134.37–811.73	t(40.9) = 12.145; p = 3.788e−15
Starting age	5.97	2.97	2–17	7.12	2.22	3–12	t(55.4) = 1.751; p = 0.086

Age, nonverbal IQ (SPM), information processing capacity (ZVT), musical training (total hours during life span on main instrument), musicality (AMMA; MSI), and online pitch identification screening (PIS) for each group.

*One RP has reported himself not having an absolute pitch but reached a screening score of 13. Because of this and the weak performance in the pitch adjustment test, the subject was assigned to the RP group. Significant group differences are indicated in italics. Welch two-sample t test