A program to train lower socio-economic parents in more effective management of their preschool children was developed and evaluated. In the planning stage objectives were formulated and strategy designs set. The methodology consisted principally of programed text and videotape. Formative development and two evaluations produced and modified the prototype materials. In the final phase, the summative development and evaluation, the production and limited "field test" of the completed materials was carried out with twenty-one subjects. The results were that the programing models for the text and video-taped simulations were effective as demonstrated by the parents' successful completion of the materials, a significant increase in the parents' ability to select correct procedural statements related to behavioral management after exposure to the program, the parents' successfully written applications of the principles of behavioral management to the behaviors of their children, and the parents' receptivity to both the programed materials and their contents. (WH)