Educational board game for training dental and dental hygiene students in patient safety issues

BMC Medical Education

Table 3 Knowledge improvement after playing board games

Scores	Pre-assessment		Post-assessment		P-value^c	Effect Size (Hedges’ g)
Scores	M ± SD	Correct rate (%)	M ± SD	Correct rate (%)	P-value^c	Effect Size (Hedges’ g)
Recall
DH2019	2.00 ± 1.537	50.00	3.26 ± 1.176	81.50	0.003	0.886
Dental students	2.37 ± 1.497	59.25	3.63 ± 0.926	90.75	0.001	0.975
DH2020	1.76 ± 1.363	44.00	3.36 ± 1.221	84.00	< 0.001	1.198
P-value	0.324^a		0.433^b
Comprehension
DH2019	15.74 ± 2.200	78.70	17.35 ± 1.641	86.75	0.012	0.802
Dental students	15.00 ± 3.000	75.00	16.70 ± 3.244	83.50	0.004	0.527
DH2020	16.08 ± 2.290	80.40	17.00 ± 2.273	85.00	0.034	0.390
P-value	0.299^a		0.628^b
Application
DH2019	0.13 ± 0.344	3.25	3.61 ± 0.499	90.25	< 0.001	7.828
Dental students	0.22 ± 0.424	5.50	0.81 ± 1.001	20.25	0.003	0.690
DH2020	0.04 ± 0.200	1.00	0.72 ± 1.061	18.00	0.004	0.847
P-value	0.122^b		< 0.001^b
Overall
DH2019	17.87 ± 3.035	63.82	24.22 ± 2.110	86.50	< 0.001	2.338
Dental students	17.59 ± 3.522	62.82	21.15 ± 3.405	75.53	< 0.001	0.997
DH2020	17.88 ± 2.455	63.86	21.08 ± 2.768	75.29	< 0.001	1.182
P-value	0.929^a		< 0.001^b

a: One-way ANOVA; b: Welch’s ANOVA; c: Paired t-test
The total pre- and post-knowledge assessment scores were 4 for recall, 20 for comprehension, 4 for application, and 28 for overall knowledge.

ISSN: 1472-6920