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Table 2 Intervention and assessment times

From: A universal harm-minimisation approach to preventing psychostimulant and cannabis use in adolescents: a cluster randomised controlled trial

  Baseline Intervention Immediate post-intervention 5 month follow-up 10 month follow-up
Timing Term 2 Term 2&3 Term 2&3 Term 4 Term 2
March-April April-June June-August October-November March-June
2008 2008 2008 2008 2009
Intervention group Survey 1 Climate Schools Intervention Survey 2 Survey 3 Survey 4
Control group Survey 1   Survey 2 Survey 3 Survey 4