Table 5.

Multivariate Correlates of Posttest Knowledge Scores

Participant characteristic	17-point final knowledge score		20-point all-item score
	Parameter estimate (SE)	P value	Parameter estimate (SE)	P value
(Days delay after tutorial)1/4	−1.3 (0.3)	<.0001	–1.1 (0.3)	<.0001
Critical appraisal skill >0	2.0 (0.4)	<.0001	2.2 (0.5)	.0001
Completed any rotation in cardiology	1.0 (0.5)	.04	1.1 (0.6)	.06
Age (yrs)	0.1 (0.05)	.02	0.1 (0.05)	.02
Internal Medicine (versus family medicine)	0.8 (0.5)	.10	0.9 (0.6)	.11

Multivariate linear regression model for final (17-item) posttest knowledge scores; R² = 0.47. The following participant characteristics were excluded from the model because of a lack of association (P > 0.20): postgraduate year, gender, prior endocrinology rotation, computer attitude score, diabetes care self-efficacy score, and pretest score. The same model was arrived at using either a backward or forward stepwise approach.