TABLE 1.

Descriptive statistics and Shapiro–Wilk’s test of normality in collected dataset.

		Descriptive statistics				Shapiro-Wilk p-value	Box-Cox transformation
		Min	Max	M	SD		l	Shapiro-Wilk
ISQ	General	0	30	25.04	3.55	0.000	3.44	0.056
EAS	Dissatisfaction	4	13	10.42	3.28	0.018	0.59	0.068
	Fear	4	18	9.56	2.93	0.022	0.70	0.062
	Anger	4	20	12.12	3.31	0.191	0.93	0.197
	Activity	6	20	13.86	2.93	0.049	0.94	0.059
	Sociability	6	19	13.63	3.04	0.003	1.41	0.071
Self-confidence		13	148	74.63	21.00	0.364	1.05	0.378