In relation ?theoretical models, consider the underlying concept of at least three theories at both the intra- and interpersonal levels. ?Which theories are

In relation  theoretical models, consider the underlying concept of at least three theories at both the intra- and interpersonal levels.  Which theories are related and how are their differences better suited (or not) to treatment for substance use?  Which theories are most likely to be utilized in the provision of treatment?  Why or why not?  Are some theories better suited to adolescents and young adults, while others are better suited to older populations?