The purpose of this study was to develop a measurement technique for determining skill levels required for various occupations for use in training, counseling, job placement, and measuring labor force quality. Measures related to income and educational levels of workers were selected. It was assumed that higher earnings reflected a higher skill requirement. Data were collected from census information and "The Dictionary of Occupational Titles." Only those mutually exclusive occupations were selected which contained 50,000 workers in a 1960 census and which were clearly defined in "The Dictionary of Occupational Titles." Some of the information collected included: general educational development, specific vocational preparation, aptitude, interest, temperament, physical demands, percent of workers with less than a high school education, percent of workers with 4 years or more of college, median school years by worker in each occupation, median income by worker in each occupation, and median wage and salary. Intercorrelations were obtained and a model for use of canonical correlations with multiple criteria and predictors was developed. Variables were assigned to groups arbitrarily in the model. A list of the references and occupations selected is included. (DM)