This volume is one of the products of the "knowledge development" effort implemented under the mandate of the Youth Employment and Demonstration Projects Act of 1977. It describes the Career Advancement Voucher Demonstration, which tests whether Comprehensive Employment and Training Act (CETA)-eligible youth can be effectively served by support in a college or postsecondary setting, and whether the voucher is an effective delivery mechanism. The report describes the demonstration and the results in recruiting and enrolling youth, as well as their retention through the first semester. Periodic sampling of a randomly assigned control group will help determine whether among income-eligible youth interested in higher education, the provision of support through CETA makes a difference. Selection of a comparison group from CETA participants will suggest whether employment and training programs are more or less effective options, as well as helping determine the numbers of youth currently in CETA who might be reached by this option. To date, the findings indicate that among economically disadvantaged youth randomly assigned into experimental and control groups after screening on the basis of interest and ability, the rate of college attendance in the first semester is twice as high among experimental as controls--i.e., suggesting that currently available support for college education may not be reaching all those in need; and assisting youth with college enrollment under CETA may prove to be an effective option. (KC)