Table 2.
Moderation analyses examining the impact of BIS impulsivity on the association between smoking urges factor 1 and drug-seeking/taking (see text for details)
| Dependent variable | Moderator variable | R | R 2 | R 2 change | F change | p |
|---|---|---|---|---|---|---|
| Percent tobacco choice | BIS attention | .48 | .23 | .03 | 3.45 | .07 |
| BIS motor | .43 | .19 | .00 | .42 | .52 | |
| BIS nonplanning | .43 | .18 | .00 | .22 | .64 | |
| Number of puffs consumed | BIS attention | .34 | .12 | .00 | .04 | .85 |
| BIS motor | .33 | .11 | .00 | .06 | .80 | |
| BIS nonplanning | .42 | .17 | .07 | 7.02 | .01* |
BIS nonplanning impulsivity moderated the relationship between smoking urges factor 1 and drug-taking (number of puffs consumed), but all other moderation effects were unreliable (df = 1,86)