“…The choice of substances studied ranges from only narcotics (Amsel et al, 197 1 ;Joseph, 1973;Zahn and Ball, 1972) through a variety of licit and illicit "drugs'" (Crowther, 1972;Curtis and Simpson, 1976;Jimcnes, 1980;Page, 1980). Many studies include or focus upon alcohol use (Dembo et al,, 1979;Dembo et a[., 1979a;DiBartolarneo, 1980;Nuttall and Nuttall, 1981;Padilla et a!. , 1979;Perez et al, 1980) while others include cigarettes as well as alcohol (Guinn, 1975;Jackson, 1981; Downloaded by [University of Sussex Library] at 20:46 21 June 2016 ADOLESCEIVT SUBSTANCE ABUSE Kandel, Single, and Kessler, 1976;Robles, Martinez, and Moscoso, 1980).…”