Table 3. Results from multilevel models testing G3 norms as mediators of the association between G2 marijuana use and G3 substance use (N = 216).
Parameter | Alcohol Use | Marijuana Use | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
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Model 1 | Model 2 | Model 3 | Model 1 | Model 2 | Model 3 | |||||||
B | SE | B | SE | B | SE | B | SE | B | SE | B | SE | |
Initial level at age 10 (intercept) | -0.675 | 4.154 | 0.723 | 4.353 | 1.558 | 4.263 | -10.682 | 7.880 | -11.622 | 8.299 | -8.770 | 8.324 |
Time-fixed predictors of intercept | ||||||||||||
SSDP G2 age at child birth | -0.430* | 0.206 | -0.461* | 0.214 | -0.450* | 0.212 | -0.174 | 0.351 | -0.115 | 0.368 | -0.182 | 0.373 |
G2 education | 0.429 | 0.364 | 0.457 | 0.374 | 0.460 | 0.368 | 0.598 | 0.569 | 0.554 | 0.578 | 0.583 | 0.593 |
G3 female | 2.522* | 0.991 | 2.881* | 1.028 | 2.488* | 1.022 | 2.899 | 1.511 | 3.815* | 1.591 | 3.276* | 1.637 |
SSDP G2 depression at age 24 | -0.219 | 0.194 | -0.046 | 0.188 | -0.247 | 0.198 | -0.031 | 0.285 | 0.241 | 0.279 | 0.013 | 0.285 |
G1 historical MJ use | 0.940 | 1.059 | 1.089 | 1.016 | 1.283 | 1.005 | 1.734 | 1.468 | 1.867 | 1.451 | 2.262 | 1.398 |
SSDP G2 high school MJ use | 0.222* | 0.110 | 0.208 | 0.115 | 0.205 | 0.113 | -0.103 | 0.388 | -0.265 | 0.384 | -0.313 | 0.425 |
SSDP G2 early adult MJ use | 0.093 | 0.078 | 0.062 | 0.080 | 0.102 | 0.078 | 0.033 | 0.162 | -0.033 | 0.172 | 0.042 | 0.169 |
G3 age (slope) | -0.184 | 0.964 | -0.337 | 1.011 | -0.584 | 0.992 | 1.728 | 1.664 | 2.374 | 1.712 | 1.590 | 1.727 |
G3 age2 | -0.028 | 0.029 | -0.031 | 0.030 | -0.012 | 0.030 | -0.114* | 0.054 | -0.144* | 0.054 | -0.113* | 0.056 |
Time-fixed predictors of slope | ||||||||||||
SSDP G2 age at child birth | .057 | .041 | 0.077 | 0.043 | 0.063 | 0.042 | 0.018 | 0.063 | 0.020 | 0.065 | 0.026 | 0.066 |
G2 education | -.029 | .056 | -0.029 | 0.057 | -0.017 | 0.057 | -0.047 | 0.084 | -0.038 | 0.086 | -0.030 | 0.089 |
G3 female | -.333* | .145 | -0.411* | 0.151 | -0.349* | 0.150 | -0.496* | 0.225 | -0.647* | 0.234 | -0.580* | 0.244 |
SSDP G2 depression at age 24 | .036 | .028 | -0.147 | 0.144 | 0.034 | 0.029 | 0.026 | 0.040 | -0.029 | 0.039 | 0.009 | 0.041 |
G1 historical MJ use | -.148 | .149 | -0.029 | 0.020 | -0.192 | 0.141 | -0.259 | 0.216 | -0.211 | 0.211 | -0.292 | 0.202 |
SSDP G2 high school MJ use | -.035 | .018 | -0.012 | 0.014 | -0.035 | 0.020 | 0.017 | 0.051 | 0.046 | 0.052 | 0.050 | 0.058 |
SSDP G2 early adult MJ use | -.014 | .014 | 0.002 | 0.027 | -0.016 | 0.013 | -0.011 | 0.027 | -0.004 | 0.028 | -0.013 | 0.028 |
Time-varying covariates | ||||||||||||
G2 current MJ use | 0.044 | 0.024 | 0.062* | 0.023 | 0.048 | 0.025 | 0.039 | 0.031 | 0.063* | 0.030 | 0.044 | 0.032 |
G3 own norms | 1.603* | 0.331 | - | - | - | - | 2.256* | 0.424 | - | - | - | - |
G3 Perceived parent norms | - | - | 1.443* | 0.353 | - | - | - | - | 0.834* | 0.365 | - | - |
G3 Perceived peer norms | - | - | - | - | 1.346* | 0.223 | - | - | - | - | 1.274* | 0.268 |
p < .05.
MJ = marijuana; G1 = grandparent; G2 = parent; G3 = child.