Discussion of agricultural and rural development extension systems in developing countries emphasizes the importance of a communication system and the goal of improvements in the socioeconomic status of farmers. The use of various instructional materials is discussed, constraints to development are reviewed, and the importance of feedback is…

Describes a project in which summative evaluation was successfully applied in guiding the content of a rural media campaign to increase rice production in Sierra Leone, and in judging the campaign's impact upon completion. The pretest phase of the evaluation, project material development, and evaluation results are described. (MBR)