A concurrent validity study of the Computer Attitude Scale (CAS) was undertaken to index criteria-related validity through available performance evaluation data of 47 computer programmers and operators at a large, Midwest public utility organization. A Pearson product-moment correlation coefficient of CAS scores with performance evaluations indicated high validity of the instrument. In agreement with prior research findings, both age and sex are significantly related to CAS scores. The results confirmed the hypothesis that computer attitudes and performance are linked. Implications of the results are discussed with regard to the use of the CAS as a screening/placement and training instrument. (Author/PN)