. Author manuscript; available in PMC: 2017 Dec 1.

Published in final edited form as: Exp Clin Psychopharmacol. 2016 Dec;24(6):436–446. doi: 10.1037/pha0000095

Table 1.

Relationship between sensation-seeking, impulsivity, the UPPS scale, and drug use

	Total N = 40	Correlation with SS (r)	Correlation with Imp (r)
UPPS Scale
Urgency, (mean, SD)	2.0 (.5)	.05	.48^**
Premeditation (lack of), (mean, SD)	2.2 (.6)	.26	.52^***
Perseverance (lack of), (mean, SD)	1.9 (.5)	.21	.59^***
Sensation-seeking, (mean, SD)	3.0 (.5)	.45^**	.13

Caffeine, mg/day (mean, SD)	66.63 ± 100.42	.12	−.11

Alcohol, drinks/week (mean, SD)	2.57 ± 2.76	.26	.10

Marijuana, times/month (mean, SD)	.11 ± .36	.15	.04

Impulsivity/Sensation-seeking Scale
Impulsivity (mean, SD)	25.38 ± 7.32
Sensation-seeking (mean, SD)	9.78 ± 3.05

SS= sensation-seeking; Imp= Impulsivity

^**

p≤.01

^***

p≤.001