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The problem
Intervention: Identification and classification of peer behavior clusters in childhood to predict substance use outcomes in early adolescence
Who it was tested with: 11,880 US children aged 9-10 years at baseline from 21 study sites across the United States.
The same group is measured before the intervention and again afterwards, with a baseline and an endline and sometimes a midline. Change is visible, but other causes cannot be ruled out.
"Latent class analysis was used to identify peer behavior clusters. Logistic regression was used to examine the relevance of childhood latent peer class assignment for predicting substance use in early adolescence." This longitudinal design with baseline peer behavior classification and follow-up substance use measurement provides experimental-tier evidence of an association between peer behavior patterns and later substance use risk.
Study design is observational; cannot establish causation. Mechanisms underlying the association between mixed peer groups and substance use risk are not explored. Specific substance types and prevalence rates are not detailed.
Across countries and designs
1 study · 1 country
