Table 1.

Descriptive statistics of core variables.

Variables	Time	M	SD	Skewness	Kurtosis
Fried	T1	1.15	1.01	0.82	0.50
	T2	0.79	0.78	0.69	−0.16
	T3	0.84	0.87	0.82	0.09
Dep	T1	2.22	2.95	1.90	5.14
	T2	1.19	1.93	2.47	7.91
	T3	2.14	2.62	2.70	16.01
SPA	T1	39.77	8.71	0.48	1.00
	T2	40.82	6.44	0.42	0.25
	T3	37.90	10.70	0.14	−0.37