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Time 2 only friendship group model (standardized estimates). U = residual variance in older child’s intoxication frequency at Time 2; V = residual variance in younger child’s intoxication frequency at Time 2; W = residual variance in older child’s intoxication frequency at Time 3; Z = residual variance in younger child’s intoxication frequency at Time 3. *p < .05. **p < .01.
