The report covers preparatory work for a further two-year study of student affiliation and drop-out at a four-year urban commuter college, Portland State College. The principal task was the development and testing of a series of scales measuring various aspects of student affiliation. After preliminary testing, scale test items were administered to 1,398 students in a random sample of undergraduate classes. Items were subjected to factor analysis, and resulting scales analyzed for correlation and reliability (by Kuder-Richardson Formula 21). Of six original scales, one failed to work out and two others collapsed into one on the factor analysis, leaving a final four scales: (1) Identification with the American Collegiate System, (2) Identification with Portland State College per se, (3) Identification with Student Culture, and (4) Identification with Formal Vocational Preparation Aspects of the College. Only Scales I and II showed significant correlation; the scales had reliability ranging from .71 to .89. A Freshman Questionnaire was developed to provide information on social characteristics, background, and expectations of entering freshmen. The questionnaire was completed by 1,547 freshmen, 90.7% of the entering class of Fall 1967. Descriptive data are provided. (Author)