Influences of Personal, Injunctive, and Descriptive Norms on Early Adolescent Substance use

Social norms play an important role in adolescent substance use. Norm focus theory (Cialdini, Reno, & Kallgren, 1990) distinguishes three types of norms: injunctive, descriptive, and personal. This study examines the relative influences of these three norms, as well as the moderating effects of gender and ethnicity, on the concurrent substance use of 2,245 Mexican or Mexican-American students, 676 students of other Latino or multiethnic Latino origin, 756 non-Hispanic White students, and 353 African- American students. Personal norms appear to be the strongest significant predictor of substance use. Descriptive, parental injunctive, and friend injunctive norms also demonstrate significant, though weaker influences. Controlling for intentions reduces the predictive ability of each type of norm, especially personal norms. Gender moderates the relationship between norms and substance use with the relationships generally stronger for males. Personal norms act as stronger predictors of some types of substance use for Mexican/Mexican Americans.