Table 3.

Cut-off values for categorization of MS, ME or Balanced based in difference score ME – MS.

	Mean of difference score ME – MS ± standard deviation	Extreme Music Systemizer (MS ≫ ME)	Music Systemizer (MS > ME)	Balanced (MS = ME)	Music Empathizer (ME > MS)	Extreme Music Empathizer (ME ≫ MS)
Total sample	0.0157 ± 0.65355	< −1.29	[−1.29; −0.64]	[−0.64; 0.67]	[0.67; 1.32]	>1.32
Subsample (age 18–35)	0.1054 ± 0.65898	< −1.21	[−1.21; −0.55]	[−0.55; 0.76]	[0.76; 1.42]	>1.42
Subsample (age 36–75)	−0.1405 ± 0.61427	< −1.37	[−1.37; −0.75]	[−0.75; 0.47]	[0.47; 1.09]	>1.09

Annotations: A difference score in the range of ± 1 SD around the mean of the distribution of the difference score ME – MS leads to a classification of an individual into the Balanced category. Music Systemizers were characterized by a score in the range of ≤ −1 SD below the mean of the difference variable. Music Empathizers were characterized by a score in the range of ≥ +1 SD above the mean of the difference variable. Extreme Music Empathizers are characterized by a score greater + 2 SD above the mean, and extreme Music Systemizers were characterized by a score lower than – 2 SD below the mean, respectively.