The study reports correlations between student scores on the general technical composite of the Armed Services Vocational Aptitude Battery and cumulative grade point averages. Data were collected on 911 juniors and seniors selected from a sample at 22 high schools in the San Antonio, Texas, metropolitan area. The general technical score was found to significantly relate to overall academic performance for 19 out of the 22 samples, with a media rank order correlation coefficient (rho) of .44. Results indicate that the level of relationship was not differentially affected by school-specific ethnic group composition, school expenditures, or average teacher/pupil ratio. Since socioeconomic levels represented in the various samples go from the highest to the lowest ranges, limited generalizations may be meaningful to other school districts with similar diverse populations. The report is designed for reference by high school counselors, service test administrators, and educational specialists as a supplemental guide to the interpretation of Armed Services Vocational Aptitude Battery results in local guidance and counseling programs. (Author/MF)