Table 3.
Multiple Linear Regression of Marijuana Self-Concept on Background Characteristics, Measures of Marijuana Use and Problems, and Motivations for Using Marijuana (n = 345).
| Adjusted Associations
|
|||
|---|---|---|---|
| b (95% CI)a | βb | t (p =) b | |
| Age | −0.003 (−0.101; 0.093) | −0.00 | −0.07 (.941) |
| Gender (Male) | 0.178 (−0.218; 0.574) | 0.08 | 0.89 (.376) |
| Hispanic (Yes) | 0.041 (−0.634; 0.717) | 0.02 | 0.12 (.905) |
| Race | |||
| Black | 0.379 (−0.338; 1.078) | 0.16 | 1.03 (.305) |
| Other | 0.230 (−0.347; 0.807) | 0.10 | 0.79 (.433) |
| White [REF] | [0.00] | [0.00] | |
| Days Used | 0.070 (0.050; 0.091) | 0.35 | 6.79 (<.001) |
| Cannabis Problems | 0.100 (0.041; 0.152) | 0.02 | 3.41 (.001) |
| Coping Motive | 0.173 (−0.199; 0.546) | 0.06 | 0.91 (.361) |
| Social Motive | 0.684 (0.310; 1.059) | 0.21 | 3.59 (<.001) |
| Enhancement Motive | 0.422 (0.102; 0.741) | 0.13 | 2.60 (.010) |
| Desire to Reduce | −0.099 (−0.177; −0.022) | −0.13 | −2.53 (.012) |
| Descriptive Norms - Friends | −0.005 (−0.014; 0.005) | −0.05 | −0.97 (.332) |
| Descriptive Norms - Peers | 0.007 (−0.010; 0.013) | 0.01 | 0.27 (.130) |
| % Days Used Alone | 0.007 (−0.002; 0.016) | 0.08 | 1.52 (.130) |
a
Fully-standardized coefficient for continuous covariates and y -standardized coefficient for categorical covariates.
b
Standard errors and tests of significance are based on the robust Huber-White Variance Estimator.