and AUDs may be identified (see Integrating Developmental Models of Alcohol, Personality, and Relevant Mediators section below). It also suggests that part of the genetic influence on the development of AUDs is not specific to alcohol use disorders and likely shared by a number of externalizing behavior problems including other substance use disorders (Kendler, Prescott, Myers, & Neale, 2003; Krueger et al., 2002; Krueger et al., 2005).