Marijuana, Methamphetamine, and Oxycodone

Diana Keith

Drug use and abuse remains an important public health problem in the United States. In particular, there has been considerable recent concern regarding the illicit use of marijuana, methamphetamine, and prescription pain relievers. However, several important gaps remain in our knowledge of these drugs. The current studies aim to address three of these gaps. Further, the present studies utilized a translational, multilevel approach in order to better understand substance use as a whole. First, although there have been a number of studies examining marijuana use in college students, there is a lack of information regarding the consequences of marijuana and alcohol co-use, as well as the relationship between marijuana use and mental health and stress. Study 1 examined the relationship between frequency of marijuana use and other substance use, binge drinking, negative consequences...