Abstract
The effectiveness of a conflict resolution training program in an American, midwestern, middle school was examined. The participants were 198 students in Grades 6 through 9. A pretest-posttest control-group experimental design was used. Those in the experimental group received 14 hr of training during a 25-min homeroom period. Significant differences between experimental and control groups occurred in knowledge of the negotiation procedure and ability to apply it to actual conflicts.