Table 6.

Significant independent predictors of course performance (hierarchical multivariate linear regression analysis)

Outcome variable	Predictor variable block †	R 2	Δ R2 ‡	Significant predictors	Beta	t	P §
	Including UKCAT total score
Theme A	1 (socio-demographic)	0.02	0.04	None
	2 (UKCAT total score)	0.04	0.03 *	UKCAT total score	0.17	2.24	0.03
Theme B	1 (socio-demographic)	0.01	0.03	None
	2 (UKCAT total score)	0.02	0.02	None
Theme C	1 (socio-demographic)	0.12	0.14 ***	Male sex	-0.23	-3.22	0.002
				White Ethnicity	0.24	3.07	0.002
	2 (UKCAT total score)	0.15	0.03 *	Male sex	-0.25	-3.55	< 0.001
				White Ethnicity	0.22	2.83	0.005
				UKCAT total score	0.18	2.54	0.012
Theme D	1 (socio-demographic)	0.03	0.06 *	Male sex	-0.17	-2.31	0.02
	2 (UKCAT total score)	0.04	0.01	Male sex	-0.16	-2.12	0.04
Theme D OSCE	1 (socio-demographic)	0.01	0.03	None
	2 (UKCAT total score)	0.00	0.00	None
	Including UKCAT sub-test scores
Theme A	1 (socio-demographic)	0.02	0.04	None
	2 (UKCAT sub-test scores)	0.09	0.09 **	UK student	-0.18	-2.22	0.028
				Selective Schooling	-0.18	-2.39	0.018
				UKCAT Verbal Reasoning	0.19	2.41	0.017
				UKCAT Quantitative Reasoning	0.22	2.85	0.005
Theme B	1 (socio-demographic)	0.01	0.03	None
	2 (UKCAT sub-test scores)	0.05	0.06 *	Selective Schooling	-0.16	-2.13	0.034
				UKCAT Verbal Reasoning	0.20	2.54	0.012
Theme C	1 (socio-demographic)	0.12	0.14 ***	Male sex	-0.23	-3.22	0.002
				White Ethnicity	0.24	3.07	0.002
	2 (UKCAT sub-test scores)	0.19	0.08 **	Male sex	-0.26	-3.63	< 0.001
				White Ethnicity	0.18	2.38	0.019
				Selective Schooling	-.016	-2.24	0.026
				UKCAT Verbal Reasoning	0.28	3.86	< 0.001
Theme D	1 (socio-demographic)	0.03	0.06 *	Male sex	-0.17	-2.31	0.02
	2 (UKCAT sub-test scores)	0.06	0.04	Male sex	-0.18	-2.37	0.019
				Selective Schooling	-0.16	-2.07	0.04
				UKCAT Decision Analysis	-.21	-2.67	0.008
Theme D OSCE	1 (socio-demographic)	0.03	0.03	None
	2 (UKCAT sub-test scores)	0.05	0.03	None

^† denotes the successive addition of variable blocks to the hierarchical regression, as defined in the Methods

^‡ a significant value in this column it indicates that the additional block of variables adds significantly (in terms of variance) to the prediction of the outcome variable. * p < .05, ** p < .01, *** p < .001

§ using the Bonferroni correction for multiple comparisons, p = < 0.01 for significance

VR = Verbal Reasoning, QR = Quantitative Reasoning, AR = Abstract Reasoning, DA = Decision Analysis