This study sought to reduce the practical concerns of six preservice physical education teachers in the Stanford Teacher Education Program (STEP) through adoption of the first six components of the Systematic Teacher Training Model. The study also sought to examine the degree to which teacher effectiveness might be enhanced as a result of this systematic teacher training program. The study employed an intensive experimental approach emphasizing repeated measures over time and an intervention. A multiple baseline ABABA design (“A” indicating the baseline measures and “B” the experimental time periods) was used. The teachers were matched by concerns and randomly assigned to either the experimental group or the control group. The analysis indicated that the teachers assigned to the experimental group employing the systematic treatment showed a significantly greater trend toward reduction of teaching concerns and overall increases in observed teacher effectiveness.