zero; and 2, yes to use and a non-zero CAST sum-score. While a cut-point of 4 has been recommended 3, we opted for a cut of 1 or more points in this sample of young adolescents in order to yield an adequate number of respondents in the highest group. We defined this cannabis outcome as 0 ‘no use’, 1 ‘cannabis use’ and 2 ‘problem cannabis use’.
