See Table 6 for the accuracy of the model’s predictions for the other illegal behaviors. Predictions of whether a person had ever been arrested and had injected illegal drugs came from the average level of predicted externalizing problems from ages 5–27. Model predictions for the other outcomes (clinical level of externalizing, illegal drug use, and drunk driving) were from the model’s predicted values of externalizing problems at age 27 because the outcomes occurred within the prior 6–12 months of reporting at age 27. The predictions had high accuracy for clinical levels of externalizing problems at age 27 (AUC = .99) and moderate accuracy for illegal drug use (AUC = .72), injecting illegal drugs (AUC = .82), and drunk driving (AUC = .71).
