Overreliance on inefficient computer-mediated information retrieval is countermanded by strategy advice that promotes memory-mediated retrieval

Cognitive Research: Principles and Implications

Table 1 Hierarchical linear regression predicting RT* during internal block

Variable	Step 1 (baseline)			Step 2 (with interaction)
Variable	B	SE	p	B	SE	p
Constant	1177 ms	121 ms	< .0001	1029 ms	131 ms	< .0001
eRS use proportion during choice block	1543 ms	222 ms	< .0001	1915 ms	261 ms	< .0001
Strategy advice	− 313 ms	122 ms	.012	− 38 ms	182 ms	.833
eRS use proportion during choice block × strategy advice				− 1189 ms	466 ms	.012
R²_adj	.410			.442
ΔR²_adj				.032 *

We did not center the continuous predictor because a value of “0” eRS use proportion during choice block can be meaningfully interpreted. We dummy-coded the categorical predictor strategy advice, with no advice coded as 0 and iRS-else-eRS advice coded as 1. Step 1 has 95, Step 2 94 degrees of freedom
*p = .012