Table 1.

Descriptive statistics and paired sample t-test.

	Wave 1				Wave 2				t
	M	SD	Skewness	Kurtosis	M	SD	Skewness	Kurtosis
sport competence	3.01	1.13	0.09	−0.72	3.44	1.15	−0.18	−0.52	−5.72 **
flexibility	3.04	1.13	0.12	−0.62	3.36	1.19	0.25	−0.60	−4.12 **
endurance	2.76	1.24	0.33	−0.74	3.17	1.22	0.12	−0.62	−5.96 **
strength	2.78	0.91	−0.02	−0.54	3.25	0.97	−0.10	−0.30	−7.00 **
positive self-esteem	3.14	0.50	−0.01	−0.04	3.24	0.49	−0.25	0.06	−2.84 **
negative self-esteem	3.34	0.62	−0.85	0.21	3.44	0.60	−1.04	1.00	−2.37 *
emotional well-being	4.20	0.87	−0.39	0.59	4.54	0.90	−0.50	1.00	−4.95 **
social well-being	3.38	1.01	0.18	0.05	3.71	1.06	0.03	−0.26	−4.30 **
psychological well-being	4.02	0.89	−0.21	−0.01	4.33	0.93	−0.33	−0.03	−4.73 **

* p < 0.05, ** p < 0.01.