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Predicting total number of substance classes tried by wave 2 (n = 777)
| Wave 1 measure | B | SE | p-Value |
|---|---|---|---|
| Sex | –.142 | .066 | .031 |
| Age at wave 1 | .057 | .028 | .039 |
| Wave 1–2 interval | .114 | .028 | <.001 |
| Tried by wave 1 | –.510 | .073 | <.001 |
| Harm avoidance | –.386 | .181 | .033 |
| Novelty seeking | .956 | .180 | <.001 |
| Reward dependence | –.221 | .143 | .122 |
| Persistence | –.344 | .130 | .008 |
