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Table 2 Impact of 3D heart models on knowledge acquisition. The pre-test and post-test comprised of 9 questions in multiple choice format. Both 2D image and 3D model groups show the same effect of knowledge acquisition

From: Usage of 3D models of tetralogy of Fallot for medical education: impact on learning congenital heart disease

Study group

Mean pre-test score

Mean post-test score

P-value

2D Images

3.8 ± 1.5

6.3 ± 1.2

<0.01

3D Models

4.3 ± 1.9

6.0 ± 1.6

<0.01