. Author manuscript; available in PMC: 2009 Sep 24.

Published in final edited form as: J Exp Psychol Learn Mem Cogn. 2009 Jan;35(1):196–204. doi: 10.1037/a0014104

Table 2.

Hierarchical Regression Analyses on SART Signal-Detection Sensitivity Estimate (d_L)

Variable	B	SE	Beta	t	R²
Predictors: WMC, TUT
Step 1: WMC	.550	.118	.287	4.651^*	.082
Step 2: WMC, TUT	−2.591	.484	−.321	−5.358^*	.180
Predictors: TUT, WMC
Step 1: TUT	−2.973	.484	−.368	−6.142^*	.135
Step 2: TUT, WMC	.417	.115	.217	3.631^*	.180
Predictors: CFQ-MAL, TUT
Step 1: CFQ-MAL	−.016	.006	−.179	−2.815^*	.032
Step 2: CFQ-MAL, TUT	−2.805	.487	−.347	−5.762^*	.150
Predictors: TUT, CFQ-MAL
Step 1: TUT	−2.955	.485	−.366	−6.090^*	.134
Step 2: TUT, CFQ-MAL	−.012	.006	−.129	−2.136^*	.150
Predictors: WMC, CFQ-MAL, TUT
Step 1: WMC	.548	.118	.287	4.636^*	.082
Step 2: WMC, CFQ-MAL	−.017	.006	−.183	−3.007^*	.116
Step 3: WMC, CFQ-MAL, TUT	−2.400	.486	−.297	−4.941^*	.198
Predictors: CFQ-MAL, WMC, TUT
Step 1: CFQ-MAL	−.016	.118	−.179	−2.185^*	.032
Step 2: CFQ-MAL, WMC	.553	.485	.289	4.755^*	.116
Step 3: CFQ-MAL, WMC, TUT	−2.400	.005	−.297	−4.491^*	.198

p < .05

Note: N = 243. WMC = working memory capacity; TUT = proportion self-reported task-unrelated thoughts; CFQ-MAL = Cognitive Failures Questionnaire–Memory and Attention Lapses. N = 242 for CFQ-MAL analyses.