“…Varying definitions of substance abuse are common. When conducting research on alcohol abuse among older adults, for example, a DSM-III/IV diagnoses of alcohol abuse/dependence may be used (Blow, Walton, Chermack, Mudd, & Brower, 2000) while others define abuse as DWI arrests (Fitzgerald & Mulford, 1992). Still others use standardized measurement tools to screen for problem drinking (Joseph, Rasmussen, Ganzini, Atkinson, 1997) or illicit drugs use such as marijuana, cocaine, opiates, or barbiturates among older adults (Guida et al, 2004;King et al, 1994;Schlaerth et al, 2004;Colliver, Compton, Gfroerer, & Condon, 2006).…”