Table 1b.
Conditional Growth Model Results for Impulsivity and Sensation Seeking Predicting Alcohol Use
| Effects for Intercept Factor | Impulsivity |
Sensation Seeking |
||||||
|---|---|---|---|---|---|---|---|---|
| EST | SE | STD | p< | EST | SE | STD | p< | |
| Intercept Factor | ||||||||
| Intercept Factor Mean | 1.97 | 0.04 | — | .01 | 1.64 | 1.96 | — | .40 |
| Intercept Factor Variance | 0.09 | 0.01 | 0.97 | .01 | 20.71 | 1.79 | 0.86 | .01 |
| Effects of Time-Invariant Predictors | ||||||||
| FH Status | 0.14 | 0.04 | 0.19 | .01 | −0.01 | 0.64 | −0.01 | .99 |
| Relations Between Outcomes | ||||||||
| IMP Intercept | — | — | — | — | 5.48 | 1.02 | 0.35 | .00 |
| IMP Slope | — | — | — | — | −0.90 | 1.59 | −0.05 | .57 |
| Random Effect Covariances | ||||||||
| Within-Variable Covariance with Slope | −0.03 | 0.01 | −0.38 | .01 | −5.38 | 1.48 | −0.30 | .01 |
| Effects for Slope Factor | Impulsivity |
Sensation Seeking |
||||||
|---|---|---|---|---|---|---|---|---|
| EST | SE | STD | p< | EST | SE | STD | p< | |
| Slope Factor | ||||||||
| Slope Factor Mean | −0.13 | 0.03 | — | .01 | 4.04 | 2.36 | — | .09 |
| Slope Factor Variance | 0.07 | 0.01 | 1.00 | .01 | 15.87 | 3.01 | 0.94 | |
| Age 13.0 Loading | 0.00 | — | — | — | 0.00 | — | — | — |
| Age 13.5 Loading | 0.06 | 0.06 | 0.05 | .31 | 0.19 | 0.07 | 0.15 | .01 |
| Age 14.0 Loading | 0.32 | 0.07 | 0.24 | .01 | 0.35 | 0.09 | 0.28 | .01 |
| Age 14.5 Loading | 0.52 | 0.06 | 0.40 | .01 | 0.53 | 0.11 | 0.42 | .01 |
| Age 15.0 Loading | 0.64 | 0.05 | 0.49 | .01 | 0.67 | 0.13 | 0.52 | .01 |
| Age 15.5 Loading | 0.93 | 0.07 | 0.67 | .01 | 1.00 | 0.06 | 0.72 | .01 |
| Age 16.0 Loading | 1.00 | — | — | — | 1.00 | — | — | — |
| Effects of Time-Invariant Predictors | ||||||||
| FH Status | 0.05 | 0.04 | 0.07 | .26 | −1.11 | 0.69 | −0.11 | .11 |
| Relations Between Outcomes | ||||||||
| IMP Intercept | — | — | — | — | −0.70 | 1.15 | −0.05 | .55 |
| IMP Slope | — | — | — | — | 3.29 | 1.45 | 0.21 | .02 |
| Effects for Alcohol Use at Age 16 | EST | SE | STD | p< | ||||
| FH Status | 1.02 | 0.56 | 0.19 | .07 | ||||
| IMP Intercept | 0.18 | 0.76 | 0.03 | .82 | ||||
| IMP Slope | 1.41 | 0.96 | 0.16 | .14 | ||||
| SS Intercept | 0.24 | 0.05 | 0.54 | .01 | ||||
| SS Slope | 0.12 | 0.07 | 0.23 | .08 | ||||
Note: EST = unstandardized estimate; SE = standard error; STD = standardized estimate; FH = family history (0 = negative, 1 = positive); IMP = impulsivity; SS = sensation seeking.