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The cross-drug relationship of subjective experiences between alcohol, tobacco, and marijuana and problem drug use behaviors were examined. Data were drawn from 3853 individuals between the ages of 11 and 30 years of age participating in the Colorado Center on Antisocial Drug Dependence [CADD]. Subjective experiences were assessed using a 13-item questionnaire that included positive and negative responses...
Aim To examine variation in positive and negative subjective effects to alcohol, tobacco and marijuana and covariation between these three drugs and each effect.
Design Retrospective self‐reports of subjective effects were collected to estimate the genetic and environmental influences and the extent of their specificity across three drugs.
Participants Data were drawn from 1299 adolescent and young...
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