Table 2.

Summary of preliminary analysis by gender.

	Total Sample (n = 672)				Boys (n = 344)				Girls (n = 326)
	ER	INR	IDR	IM	ER	INR	IDR	IM	ER	INR	IDR	IM
M	1.96	1.92	2.33	1.77	1.99	1.92	2.24	1.69	1.92	1.92	2.43	1.85
SD	0.59	0.73	0.62	0.76	0.59	0.75	0.67	0.78	0.59	0.70	0.54	0.74
Min	0.25	0.00	0.00	0.00	0.25	0.00	0.00	0.00	0.25	0.00	0.43	0.00
Max	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00
Skew	−0.36	−0.41	−1.16	−0.21	−0.52	−0.50	−1.13	−0.13	−0.20	−0.30	−1.00	−0.27
Kurtosis	−0.41	−0.44	1.51	−0.69	−0.19	−0.40	1.29	−0.77	−0.58	−0.52	0.76	−0.60
Cronbach's α	0.75	0.82	0.87	0.88	0.75	0.83	0.88	0.88	0.76	0.81	0.85	0.87

Means (M), standard deviations (SD), minimum (Min), maximum (Max), skewness (SE = standard error), kurtosis (SE = standard error), and Cronbach's α of the four scales external regulation (ER), introjected regulation (INR), identified regulation (IDR), and intrinsic motivation (IM) of the German version of the 28-item SRQ-A. Results are separated according to gender.