In September 2007, the College Board formed the Task Force on Admissions in the 21st Century in response to a request from the Guidance and Admission Assembly Council (GAA Council) to more closely examine the high school-to-college transition process. Students and parents complained about the lack of transparency in the process, the confusing nature of the application process, how difficult it was to secure good information about college choice, and how the admission outcomes were unpredictable and sometimes appeared to defy logic. School counselors expressed similar concerns regarding process and outcomes, and they empathized with their students. This report answers three questions: (1) Do lower-income students and their parents find the college application process overly complex? (2) If so, what particular barriers get in the way of applying or enrolling? Lack of understanding? Lack of confidence? Other obstacles? and (3) What issues or people have the biggest influence on their decisions? The results of the research published here, and previous research, will be used to inform the profession -- principally admission officers and school counselors -- and help shape the responses to the needs of students and their parents with a clearer understanding of their experience with the school-to-college transition process. The findings provide a better understanding of why and how the admission process can be made less complex to remove potential barriers to access to higher education for lower-income students. [For the Executive Summary, see ED619522. For previous research, "Complexity in College Admission: Fact or Urban Myth. Research Findings of Parent and Student Perceptions of Complexity in College Admission," see ED520811.]