“…For example, higher levels of self-efficacy are associated with less drinking in the alcoholic population (Long, Hollin, & Williams, 1998), particularly among male-only samples (Burling, Reilly, Moltzen, & Ziff, 1989;McKay, Maisto, & O'Farrell, 1993;Rychtarik, Prue, Rapp, & King, 1992). In studies of drug users, relationships between heightened self-efficacy and lower levels of drug use have been consistently replicated, and a number of studies have found increased self-efficacy during treatment is related to reduction in drug use, with the magnitude of this relationship strengthened as time in treatment increased (Rounds-Bryant, Flynn, & Craighead, 1997).…”