Table 2.

Correlations among Reinforcement Metrics and Smoking Measures

Measure	Motivation To Change	Cigarettes/Day	Nicotine Dependence	Intensity	Omax	Elasticity	Breakpoint	Pmax	SES
Motivation to Change	1
Cigarettes/Day	−.02	1
Nicotine Dependence	−.09	.70***	1
Intensity	−.21*	.30***	.27***	1
Omax	−.12	.34***	.31***	.41***	1
Elasticity	.14	−.25**	−.24**	−.53***	−.74***	1
Breakpoint	−.06	.21*	.17*	.22*	.81***	.64***	1
Pmax	−.07	.09	.17*	−.06	.73***	−.44*	.82***	1
SES	−.12	−.15	−.20*	−.21*	−.15	.20*	−.12	−.01	1

Note: O_max = maximum output (expenditure); P_max = Price maximum; SES = socioeconomic status, 1 = lowest SES, 2 = middle SES, 3 = highest SES;

^*p ≤ .05;

^**p ≤ .01;

^***p ≤ .001