. 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 1.

Correlations among WMC, mind wandering, and performance measures

	WMC	TUT	d_L	RT variation	CFQ-
MAL
WMC	---
TUT	−.217^**	.885
d_L	.287^**	−.368^**	.948
RT variation	−.351^**	.396^**	−.599^**	.927
CFQ-MAL	.014	.144^*	−.179^**	.146^*	.930

^**

p < .01

p < .05

Note: N = 243. Values on the diagonal reflect Cronbach’s alpha for each measure as a reliability estimate; alphas were calculated over task blocks for SART measures and over items for the CFQ-MAL. WMC = working memory capacity; TUT = proportion self-reported task-unrelated thoughts; d_L = signal-detection sensitivity measure on SART; RT variation = intra-individual standard deviation for non-target reaction times on SART; CFQ-MAL = Cognitive Failures Questionnaire–Memory and Attention Lapses. N = 242 for CFQ-MAL analyses.