Table 2.

Mean and standard deviations, Pearson’s correlation coefficients, and intraclass correlation for the scores of each scale at T1 and T2 (n = 30)

Scale	Mean scores			Correlation between scores at T1 and T2	Intraclass correlation (ICC)
	T1	T2	Paired t test
	Mean ± SD		p value	Correlation coefficient	ICC	95% CI	Value
Knowledge	68.1 ± 13.9	67.2 ± 15.2	>0.05	0.639*	0.778	0.527–0.896	<0.001
Attitude	82.8 ± 17.9	83.3 ± 21.0	>0.05	0.865*	0.921	0.830–0.964	<0.001
Social norms	24.7 ± 4.5	24.8 ± 6.1	>0.05	0.772*	0.850	0.680–0.930	<0.001
Self-efficacy	41.6 ± 7.9	40.7 ± 9.2	>0.05	0.744*	0.848	0.676–0.929	<0.001
Practices	58.3 ± 11.9	57.0 ± 9.6	>0.05	0.617*	0.752	0.472–0.884	<0.001

* The correlations are significant at P < 0.05