“…For both outcomes, youths' own attitudes toward marijuana use are stronger predictors of their intentions than norms or self-efficacy. Although the relatively weaker role for norms is consistent with earlier findings for marijuana use among US undergraduates (Bailey et al, 1992) and US secondary and high school students (Cook et al, 1980), we wanted to explore the relationship further since earlier studies, such as Anyanwu's work with UK youth, have shown that peer influence is a strong predictor of drug use. In addition, recent research has supported the need to examine further the norm construct (Albaraccin et al, 2001;Donald & Cooper, 2001;Grube et al, 1986).…”