The Stanford Computer-Based Educator Training Intervention (SCETI) was designed to provide teachers with extensive instruction in cardiovascular disease risk factor concepts and to assess the intervention's effects on a number of teacher variables mediating program implementation. The SCETI program was an interactive computer program which used principles of programed instruction to guide the user through units on coronary heart disease, exercise, nutrition, smoking, and stress. Six teachers completed the SCETI program while nine teachers participated in a half-day training workshop. Results indicate that exposure to the programed instruction-based SCETI program resulted in significant knowledge gains. The computer-assisted condition resulted in teachers learning significantly more than teachers in the workshop group. Four of the five computer-assisted instruction units were influential in the modification of self-reported teacher health behaviors. Self-reported data from SCETI teachers suggest that the methodology employed in the development and delivery of the SCETI program alleviated many teacher concerns, increased teacher comfort with and enthusiasm for the program, and enhanced teacher preparedness to deliver the program. (Contains 38 references.) (JDD)