The Position Analysis Questionnaire (PAQ), a structured job analysis questionnaire that provides for the analysis for individual jobs in terms of 187 job elements, has been found in previous studies to be useful as the basis for predicting the mean test scores of incumbents on a sample of jobs in terms of the nine tests of the General Aptitude Test Battery (GATB) of the United States Training and Employment Service. The present study was directed toward use of the PAQ as the basis for predicting test-related data for various commercially available tests considered to measure the same constructs as those measured by the GATB tests. Data were obtained for a sample of 96 jobs, the data consisting of a PAQ analysis for each job and data for the incumbents on various commercially available tests. The data for the various jobs for which any given test had been used were grouped into categories for the constructs represented by the individual GATB tests. The available norms of the tests representing any given construct were converted to a set of standard scores with a mean of 10 and a standard deviation of 20. The PAQ job dimension scores were then used as predictors of whatever test-related criteria were available for any given construct. The PAQ-based predictions for the criteria of mean test scores and cutoff scores were all highly significant. However, the predictors for actual validity coefficients were understandably low. The prediction of whether or not specific tests would be "valid" were also significant. Although the predictions supported the utility of the PAQ-based job-component validity model, a number of problems probably resulted in overly conservative predictions. A later analysis will be carried out after the sample size is increased. (Author/JT)