The Effect of GeoGebra on Students’ Abilities to Study Calculus

Table 4

Test normality of pretest.

	Group	Kolmogorov–Smirnov			Shapiro–Wilk
		Statistic	Df	Sig.	Statistic	df	Sig.
Pre-test	Experimental	0.119	30	0.200	0.946	30	0.133
	Control	0.145	36	0.055	0.957	36	0.172