Social cognitive theory was used to explain the relationships between career-relevant activities (environmental and self career exploration, career resources, and training), self-regulatory variables (job search self-efficacy and job search clarity), variables from the Theory of Planned Behavior (job search attitude, subjective norm, job search intention), and job search intensity. Based on a sample of employed and unemployed job seekers, we found that job seekers who spent more time in career exploration, attended more training programs, and used more career resources reported higher job search clarity and job search self-efficacy. Job search self-efficacy, job search attitude, and subjective norm predicted job search intention, and job search clarity and job search intention predicted job search intensity eight months later. The results of this study provide practical information on what job seekers can do to improve their job search clarity and job search self-efficacy and demonstrate the application of social cognitive theory for understanding and predicting job search behavior. (Contains 3 tables and 1 figure.)