Table 3.

Random Effects Regression Models for Knowledge Quiz Gains.

Variables	Number of Correct Answers (n = 544)
	Model 1			Model 2
	b	95% CI	sig.	b	95% CI	sig.
Post-test	1.265	1.014–1.516	***	1.265	1.014–1.516	***
Years of Experience				−0.007	−0.019–0.005
Female				−0.120	−0.485–0.244
White				0.069	−0.464–0.602
African American				−0.657	−1.272–0.043	*
Physician				0.424	−0.012–0.859
Nurse				0.182	−0.260–0.625
Constant	3.452	3.257–3.647	***	3.492	2.833–4.150	***
Wald X2	97.7		***	127.9		***
n	544			544

Note: * p < 0.5; ** p < 0.01; *** p < 0.001.