Table 4.

Linear and quadratic coefficients from the quadratic regression models describing the association between the WISDM-68 subscales and smoking heaviness, N = 414

Outcome	Linear coefficient	t	Quadratic coefficient	t
1. Affiliative Attachment	−.80	−2.46**	.13	4.06**
2. Automaticity	−1.12	−3.49**	.20	6.28**
3. Loss of Control	−1.23	−3.74**	.21	6.30**
4. Behavioral Choice—Melioration	−.57	−2.0*	.12	4.15**
5. Cognitive Enhancement	−.85	−2.64**	.13	4.08**
6. Craving	−.94	−3.20**	.18	6.10**
7. Cue Exposure—Associative Process	−.72	−2.60**	.12	4.34**
8. Negative Reinforcement	−.29	−0.98	.08	2.66**
9. Positive Reinforcement	−.35	−1.19	.08	2.75**
10. Social and Environmental Goads	−.48	−1.34	.10	2.73**
11. Taste and Sensory Properties	−.39	−1.40	.09	3.25**
12. Tolerance	−1.24	−4.4**	.23	8.40**
13. Weight Control	−.33	−0.87	.05	1.43

Note. WISDM-68 = Wisconsin Inventory of Smoking Dependence Motives; shown are nonstandardized linear and quadratic coefficients for smoking heaviness predicting each of the WISDM-68 13 subscales. Only cases with all available data on “smoking heaviness” were included in the analyses. Smoking heaviness = log [(no. cigarettes/day × 30 days) + 1].

*p < .05; ** p < .01.