Table 4.

Multivariate Regression Coefficients for Predicting the EBM Test Scores of Volunteer Community-based and Full-time Faculty (N = 174)

Variables	Unstandardized Regression Coefficient (β)*	SE	Standardized Regression Coefficient (β′)†	P Value
Full-time faculty	0.184	0.038	0.298	<.001
Research background‡	0.065	0.016	0.284	<.001
Factor 1: Understanding of study type, sensitivity, and specificity	0.059	0.014	0.278	<.001
Family Practice specialty	0.065	0.027	0.162	.016
Encourage learners to perform literature search	0.054	0.026	0.135	.036
Years since residency, n	−0.003	0.002	−0.126	.045

^*The Unstandardized Regression (β) Coefficient is the adjusted mean difference between the indicated category and the reference category in percent test questions correct. The intercept (−0.038) gives the baseline percent correct a faculty would be predicted to score on the test. The β coefficient gives the percentage correct to multiply by the value of the variable (yes = 1), and to add to or subtract from the intercept for each indicated variable.

^†Standardized Regression Coefficients (β′) compare the magnitudes of the regression coefficients and indicate the relative importance of each individual variable. Variables are listed by the strength of β′.

^‡1 = “essentially none” to 4 = “a lot.”

R² = .39, adjusted R² = .37, model F value = 17.9 with P < .001, df = 6, 169; coefficient for the intercept = −0.038 with SE = 0.065.