College populations may differ greatly, not only in terms of traditional academic variables such as high school grades and test performances, but also in terms of student interests, values, educational aspirations, occupational plans, and socio-economic background. The recognition of biographic variables as potential predictors of academic success in college led to the development of a 20-minute questionnaire, Survey of Educational Plans after High School, which was administered to over 7,500 high school seniors between 1966 and 1967 by the Washington Pre-College Testing Program (WPC). This paper, the first of 3 that will describe and analyze results of the questionnaire, deals with 1 biographic variable--the type of college a student plans to attend-- and relates it to WPC aptitude and achievement variables. Twenty graphs compare cumulative percentage distributions of the overall high school GPA, the 6 high school subject GPAs, and 13 WPC Test scores for students electing to attend 3 kinds of institutions: 2-year colleges, 4-year state or private colleges, and state universities. On each of the 20 cognitive variables, students choosing universities ranked first as high achievers, those electing state and private colleges placed second, and those going to community colleges came third. In Tables 1 and 2, GPA and WPC Test scores differentiate between students who will attend each of the 3 types of institutions, and Table 3 lists WPC standard score means based on a 1968 high school standardization group. (WM)