Table 2.

Hierarchical regression analysis with the number of learning cards (Step 1), test questions (Step 2), and notes (Step 3) as independent variables and the percentage of correct answers as dependent variable.

		B	SE B	β	ΔR 2
Step 1					.043a
	Learning cards	0.011	0	.21a	—b
Step 2					.017a
	Learning cards	0.008	0	.16a	—
	Test questions	0.001	0	.14a	—
Step 3					.004a
	Learning cards	0.008	0	.15a	—
	Test questions	0.001	0	.14a	—
	Notes	0.003	0	.06a	—

^aThis denotes a value with P<.001.

^bNot applicable.