Table 2

Results of preintervention and postintervention 1 surveys

		Preintervention	Postintervention 1	Postintervention 2	Descriptive statistics* (PT; PTT1)		Paired differences* (PT; PTT1)
Domain	Question	n (%corr)	n (%corr)	n (%corr)	Mean	SD	Significance (two tailed)
1	1	277 (54.5)	216 (97.7)	n/a	0.59; 0.98	0.49; 0.15	6.5024E-22
	2	278 (88.1)	216 (100.0)	n/a	0.92; 1.00	0.28; 0.00	0.000016
	4	278 (35.6)	216 (50.9)	n/a	0.34; 0.51	0.47; 0.50	0.000296
	Sum	n/a	n/a	n/a	0.62; 0.83	0.27; 0.17	3.0212E-19
2	3	278 (76.3)	216 (97.7)	n/a	0.81; 0.98	0.40; 0.15	2.4865E-8
3	5	278 (74.1)	216 (91.7)	n/a	0.80; 0.92	0.40; 0.28	0.000223
4	6a	279	215	248	3.47; 4.50	0.75; 0.70	2.9153E-35
	6b	279	213	246	2.30; 4.34	1.09; 0.77	4.167E-57
	6c	278	213	249	2.27; 4.32	1.06; 0.79	2.3818E-58
	6d	276	215	249	3.69; 4.11	0.78; 0.97	0.000001
	Sum	n/a	n/a	n/a	0.59; 0.86	0.13; 0.14	1.0785E-53
Test	Sum	n/a	n/a	n/a	0.68; 0.87	0.19; 0.10	2.4165E-29

*Descriptive statistics and paired differences analysis were done comparing preintervention and postintervention 1 only.
%corr, per cent correct; n/a, not applicable; PT, preintervention survey; PTT1, postintervention survey 1.;