The purpose of this study was twofold. First, to determine if planned interventions could increase untrained undergraduate students' use of positive and specific skill feedback while a teaching fundamental motor skill to children who are disabled. Second, to qualitatively assess the effect of specific verbal feedback on student motor performance. Six undergraduate students enrolled in the Adapted Physical Activity and Lab class at Oregon State University served as teachers for 6 children who were classified as having a mild to moderate disability. Teachers were individually videotaped teaching the same fundamental motor skill each week for 14 weeks in the actual clinic setting. Week 4 teachers were sequentially introduced to the intervention package which included: (a) defining specific skill feedback and discussing its role in skill development, (b) a single viewing of a master teacher videotape, (c) verbally and physically reviewing critical elements of skill being taught, and (d) reviewing teacher feedback and student motor performance each lesson. A variation of the single subject, multiple baseline design across subjects was used to assess the effect of the intervention package on teacher feedback and student motor performance. Single subject data analysis techniques indicated untrained teachers were already using corrective specific feedback while the intervention package developed successfully increased their use of positive specific skill feedback. In addition, evidence suggests a positive relationship between teachers' use of specific skill feedback and student motor performance. Based on these findings, it appears specific verbal feedback behavior of untrained volunteer teachers can be increased as a result of the intervention package developed. It is recommended that future studies replicate this study with a larger number of teachers/students and over a longer period of time. / Graduation date: 1992