Table 2. Comparison of exam scores.

Cohort

ADM?

Mean score

Difference

Significant?^a

Regular group

Exchange group

1

No

4.0 (N=54)

0.8 (N=12)

3.2

Yes

2

Yes

4.8 (N=22)

5.4 (N=37)

0.6

No

3

Yes

5.0 (N=38)

3.6 (N=23)

1.4

Yes