TABLE 1

Means, SDs, and Parameter Estimates for Univariate Growth Curves

VariableDescriptive StatisticsInterceptLinear Slope
MeanSDMean (95% CI)SEVariance (95% CI)SEMean (95% CI)SEVariance (95% CI)SE
Parent autonomy granting2.22** (2.19–2.25)0.020.08** (0.05–0.11)0.010.05** (0.04–0.07)0.010.01* (0.00–0.01)0.01
Grade 72.250.45
Grade 82.250.47
Grade 92.310.47
Grade 102.420.49
Adolescent alcohol abuse1.13** (1.1–1.16)0.010.09** (0.07–0.11)0.010.21** (0.19–0.23)0.010.03** (0.02–0.04)0.01
Grade 71.130.37
Grade 81.350.58
Grade 91.560.68
Grade 101.730.67
  • N = 957. *P < .05; **P < .01. CI, confidence interval.