Table 1.

Summary statistics (A) and frequency counts (B) for demographic variables and smoking-related behaviors. Key: FTND = Fagerstrom score for nicotine dependence, CO = carbon monoxide, WCST = Wisconsin Card Sorting Task, BIS = Barratt Impulsivity Scale—11.

A
Amount	Average	SEM	N
Age	40.39	1.09	94
IQ	38.69	0.45	94
Cigarette equivalence $10	4.50	0.31	94
Cigarette equivalence $1000	587.90	120.67	94
Fagerstrom’s Test for Nicotine Dependence	7.29	0.15	94
Breath CO level (unit)	26.84	0.99	94
Number of quit attempts	2.90	0.43	94
Cigarettes smoked per day	26.87	0.95	94
Years of education	13.16	0.18	94
Utility Measure of Cigarette Reinforcing Efficacy	3.81	0.34	94
BIS total score	64.82	1.20	91
BIS nonplanning factor	24.93	0.58	92
BIS attention factor	16.05	0.39	92
BIS motor factor	23.87	0.45	92
WCST: trials	105.32	2.47	94
WCST: total errors	33.76	2.27	94
WCST: perseverative errors	17.07	1.30	94
WCST: non-perseverative errors	16.64	1.18	94
Stroop: color name	63.21	1.23	94
Stroop: incongruent	116.40	2.78	94
Stroop: interference effect	99.32	2.68	94
Stroop: word reading	48.22	1.01	94
Temporal discrimination (average)	49.28	4.60	92
B
Demographics:			N
Frequency statistics
Ethnicity
Caucasian			54
African Americans			39
Native Americans			1
Gender
Male			59
Female			35