Table 2.

Test of normality.

	Class	Shapiro-Wilk
		Statistic	df	p-value
IMW	1	0.92	60	0.001*
	2	0.92	30	0.02*
	3	0.82	10	0.03*
IMW PER	1	0.79	60	<0.001*
	2	0.99	30	0.98(NS)
	3	0.91	10	0.26(NS)
MP	1	0.94	60	0.004*
	2	0.93	30	0.05*
	3	0.75	10	0.003*
CP	1	0.73	60	<0.001*
	2	0.97	30	0.59(NS)
	3	0.93	10	0.47(NS)
ICW	1	0.63	60	<0.001*
	2	0.95	30	0.17(NS)
	3	0.87	10	0.09(NS)

*p<0.05 Statistically Significant, p>0.05 Non Significant, NS.