Research studies that have investigated the effects of interventions aimed at reducing prejudice are reviewed, and a synthesis of their findings is presented. Some generalizations are offered that have the potential to lead towards a less prejudiced society. Research is summarized according to the intervention approaches used in the following categories: (1) the use of special materials; (2) cognitive approaches; (3) direct approaches; (4) shared-coping approaches; (5) various classroom approaches; (6) audio-visual approaches; (7) consideration of school-wide conditions; (8) teacher training; (9) human relations training; (10) positive reinforcement approaches; (11) a variety of approaches; and (12) social contact theory approaches. A summary is also presented of changes in attitudes toward handicapped people as a form of prejudice reduction. In spite of the problems in research in prejudice reduction, there is a body of knowledge that suggests that, in working with young people, it is possible to reduce existing prejudice and even to prevent its formation. Increasing an individual's self-esteem, helping them perceive others as individuals, and sharpening cognition skills are helpful. In addition, genuine multicultural education shows great promise in prejudice reduction. (Contains 117 references.) (SLD)