“…One possibility is that low NMR may promote substance abuse as a means of coping with affective distress (Catanzaro & Laurent, 2004). Reduction of negative affect is a major reason cited for using alcohol and drugs (Johnston & O'Malley, 1986;Newcomb et al, 1988) and high negative affect is related to consuming greater amounts of drugs and alcohol (Colder & Chassin, 1993;Krueger et al, 1996;Wills et al, 1999). Much previous research has also found significantly higher NMR Expectancies 11 levels of stress (e.g., Blume, Marlatt & Schmaling, 2000;Gorman, 1988;Horowitz & Davies, 1994;Shoal & Giancola, 2001), anxiety disorders (e.g., Compton et al, 2000;Schuckit et al, 1997;Weiss & Rosenberg, 1985) and mood disorders (Raimo & Schuckit, 1998;Swendsen & Merikangas, 2000;Tomasson & Vaglum, 1995) among those with substance problems compared to non-addict control samples.…”