Table 1.

Demographic characteristics of the sample in the test (N = 695) and retest (N = 487)

		Fourth grade				Fifth grade
		N	%	Mean	SD	N	%	Mean	SD
Sex	Boys	334	48.1			233	47.8
	Girls	361	51.9			254	52.2
Age				11.0	0.5			11.9	0.5
BMI				17.8	2.5			18.3	2.3
SES				0.25	0.91			0.30	0.90
Household composition	Two parent family	570	82.0			399	81.9
	Others	125	18.0			88	18.1
Membership sports club	No	89	12.8			63	12.9
	Yes	606	87.2			424	87.1
Frequency of sports participation				2.92	1.44			2.51	1.64
	Nonathletes	89	12.8			68	14.0
	Low sports actives	229	32.9			130	26.7
	Moderate sports actives	194	27.9			166	34.1
	High sports actives	183	26.3			123	25.3
Individual versus team sports	Nonathletes	89	12.8			68	14.0
	Individual sports	161	23.2			108	22.2
	Team sports	325	46.8			236	48.5
	Individual as well as team sports	120	17.3			75	15.4
Indoor versus outdoor sports	Nonathletes	89	12.8			68	14.0
	Indoor sports	207	29.8			130	23.7
	Outdoor sports	308	44.3			239	49.1
	Indoor as well as outdoor sports	91	13.1			50	10.3
Contact versus non-contact sports	Nonathletes	89	12.8			68	14.0
	Non-contact sports	240	34.5			161	33.1
	Contact sports	277	39.9			205	42.1
	Non-contact as well as contact sports	89	12.8			53	10.9
Involvement in competition or not	Nonathletes	89	12.8			68	14.0
	Training activities	139	20.0			86	17.7
	Competition	467	67.2			333	68.4
Psychosocial health	internalizing problems			3.97	2.78			3.21	2.83
	normal	647	93.1			453	93.0
	abnormal	48	6.9			34	7.0
	externalizing problems			5.53	3.07			5.16	3.17
	normal	572	82.3			403	82.8
	abnormal	123	17.7			84	17.2
	prosocial behaviour			7.90	1.62			8.31	1.56
	normal	642	92.4			450	92.4
	abnormal	53	7.6			37	7.6