The evidence that each of these measures predict elevated propensity to self-administer drugs is not consistent with the idea that the tests are uniquely predictive, though clearly more systematic work needs to be done to evaluate the notion that putative subtypes of impulsivity are associated with different dimensions of drug self-administration behaviors, and again, more sophisticated designs must be undertaken before it can be determined whether these correlations are genetically-mediated, and whether shared genetic factors underscore the relationship between different measures of impulsivity and addictions.
