To assess the impact of the National Academy Foundation (NAF) career academy (CA) model, a large-scale, multi-site evaluation was undertaken. Survey and interview data on program experiences and postsecondary outcomes were analyzed from nine CA programs. The study used pre-post evaluation of student data, field visits, and written and telephone surveys. It drew on data for 199 graduating CA seniors and a comparison group of 190 non- CA seniors; survey data for 157 alumni who had graduated from 9 long-standing NAF-affiliated CAs 5 and 10 years before the study; survey data for 34 CA and 26 non-CA teachers; and survey data for 192 employees. Findings include the following: (1) the program impacts students positively by providing a quality experience they find beneficial and by engaging them in schooling, but it neither adds to nor detracts from their overall academic achievement; (2) as measured by their college enrollment and completion, improved career aspirations, and employment outcomes, the program positively impacts students' postsecondary transitions; (3) for teachers, the CA model challenges them to think differently about their work with students, their teaching, and their work with one another; (4) CAs provided a structured avenue for strategic and substantive employer participation. (Contains 18 references) (YLB)