The Concurrent Courses Initiative (CCI), supported by The James Irvine Foundation from 2008 to 2011, funded a selection of secondary-postsecondary partnerships in California to implement or enhance career-focused dual enrollment programs. These programs specifically targeted youth who were low-income, struggling academically, or within populations historically underrepresented in higher education, aiming to improve their high school and college outcomes. This Brief examines associations between CCI dual enrollment participation and various student outcomes for the first two years of the initiative. Using regression and propensity score matching methods, we evaluate the outcomes of participants in the first two years of the initiative relative to comparison students in the same school districts, examining the apparent effects of the CCI on high school GPA and graduation as well as postsecondary enrollment, persistence, and credit accumulation. [For "Bridging College and Careers: Using Dual Enrollment to Enhance Career and Technical Education Pathways. An NCPR Working Paper," see ED533873.]