Table 6. Multivariate regression (independent variable: age at T1, gender and school type; SE= standard error).

		B	SE	Beta	T	p
modell	constant	19.843	5.862		3.385	.001
	gender	2.451	.743	.125	3.300	.001
	age (yrs.)	.276	.896	.013	.308	.758
	school type	-6.316	.925	.293	-6.828	<.001
a	dependent variable difference between lateral jumping T2 and T1