This report is concerned with the analysis and implementation of intervention strategies designed to reduce disproportionate suspensions of minority students. As the final phase of a two-phase study, this report consists of three components: (1) continued monitoring of suspension data; (2) field studies in four Jefferson County, Kentucky, public secondary schools selected for their high and disproportionate suspension rates for black students during the first quarter of the 1976-77 school year; and (3) implementation of four different intervention strategies in the four target schools. Field coordinators assigned to each school for the last six weeks of the 1976-77 school year helped staff to plan 1977-78 school activities based on the specific discipline/suspension problems experienced by each school. An intervention strategy was then designed to address the needs of each target school. A complete description of the development of each strategy, the original design, evolution to the final form, and evaluation are included in the model description and evaluation sections of this report. The four field study cases are presented in order to provide a frame of reference for understanding the individual school setting into which each model was introduced. (Author/EB)