An evaluation of the learner-centered instruction (LCI) approach to training was conducted by comparing the LCI F-111A weapons control systems mechanic/technician course with the conventional Air Force course for the same Air Force specialty code (AFSC) on the following dimensions; job performance of course graduates, man-hour and dollar costs of the two courses, and student acceptability and instructor problems for the LCI course. Measures of job performance included a job performance test, an Air Force practical test, the supervisors' ratings, and a substitute job knowledge test. The graduates were measured both at end-of-course and again after five months in the field at field follow-up. (Author)