Background /Objective: Sixty percent of all smokers in the United States (U.S.) try smoking cigarettes before they are 18 years old. Family and peer behavior (subjective norm), and attitude may influence young people to initiate smoking. The aims of this study were to 1) determine if attitude, subjective norm, and knowledge could predict smoking behaviors; 2) identify reasons for smoking; 3) determine if there were differences in attitudes toward smoking between smokers and non-smokers; and 4) determine smokers' intent to quit.