. Author manuscript; available in PMC: 2014 Jul 28.

Published in final edited form as: Psychol Assess. 2013 Nov 25;26(2):339–349. doi: 10.1037/a0035083

Table 3.

Interitem Correlations and Between-Individual Correlations With Self-Report Measures

Variable	Said without thinking	Impatient	Spent money	Spur of the moment
Scale items
Said without thinking	—	.52^*	.39^*	.75^*
Impatient	.53^*	—	.31^*	.48^*
Spent money	.55^*	.34^*	—	.53^*
Spur of the moment	.85^*	.52^*	.54^*	—
Self-report
BIS Total	.33^*	.41^*	.36^*	.37^*
BIS Motor	.33^*	.26^*	.38^*	.37^*
BIS Non-planning	.20^†	.25^†	.19	.20^†
BIS Attention	.26^*	.51^*	.29^*	.32^*
UPPS Total	.43^*	.34^*	.42^*	.37^*
UPPS Urgency	.42^*	.41^*	.36^*	.31^*
UPPS Lack of Premeditation	.26^†	.16	.32^*	.26^†
UPPS Lack of Perseverance	.33^*	.34^*	.23^†	.23^†
UPPS Sensation Seeking	.12	.02	.17	.17

Note. UPPS data are based on an n of 77, as earlier participants were not given this measure. Within-individual correlations did not account for correlations at the person level. Within-individual correlations appear above the diagonal; between-individual correlations appear below the diagonal. BIS = Barratt Impulsiveness ScaleVersion 11; UPPS = UPPS Impulsive Behavior Scale.

^†

p < .05.

p < .01.