From: Learning outcomes from a biomedical research course for second year osteopathic medical students
 |  | Pretest Mean | Posttest Mean | Mean Change | P value* |
---|---|---|---|---|---|
Percent Correct of 20 | Second Year | 27.4% | 39.9% | 12.5% | < .001 |
 | First Year | 31.8% | 27.4% | -4.4% |  |
Number No Response of 20 | Second Year | 8.56 | 5.11 | -3.46 | < .001 |
 | First Year | 8.08 | 8.53 | 0.45 |  |
Percent Correct of Attempted | Second Year | 47.5% | 54.4% | 6.8% | .023 |
 | First Year | 51.3% | 48.8% | -2.5% |  |