Table 2.
Hierarchical Regression Analyses: Self-Control Reasons for Quittinga
| F | ΔR2 | t | β | sr2 | p | |
|---|---|---|---|---|---|---|
| Self-Control Reasons for Quitting | 5.01 | <.01 | ||||
| Level 1 | .12 | <.05 | ||||
| Cigs/Day | 2.61 | .30 | .09 | <.05 | ||
| Alcohol | −.97 | −.11 | .01 | ns | ||
| Level 2 | .16 | <.01 | ||||
| ASI | 2.88 | .38 | .09 | <.01 | ||
| DIS | .56 | .07 | .00 | ns | ||
| NA | −.39 | −.05 | .00 | ns | ||
| Immediate Reinforcement | 2.45 | <.05 | ||||
| Reasons for Quitting | ||||||
| Level 1 | .10 | <.05 | ||||
| Cigs/Day | 2.30 | .27 | .07 | <.05 | ||
| Alcohol | −.97 | −.11 | .01 | ns | ||
| Level 2 | .06 | ns | ||||
| ASI | 1.35 | .19 | .02 | ns | ||
| DIS | .86 | .11 | .00 | ns | ||
| NA | −.67 | −.09 | .00 | ns |
Note:
a
These analyses were conducted among the PTSD and AM groups. F(5, 71) = 5.01 (p <.01). Cigs/Day = Average number of cigarettes smoked per day; Alcohol = Quantity by frequency of alcohol use; ASI = Anxiety Sensitivity Index total (38); DIS = Discomfort Intolerance Scale total (39); NA = Positive Affect Negative Affect Scale Negative Affectivity subscale (40)