The study reported was designed to provide the research and development unit of a State division of vocational and technical education (D.V.T.E.) with an assessment of the impact of the "demonstration center method" as utilized by the D.V.T.E., including a data-based response to nine specific questions dealing with achievement of objectives; reports of impact; perceptions; pinpointing effective personnel, procedures, and materials; adequacy of planning; facilitating and constraining factors; administrative procedures; warranted modifications; and comparison of results and costs. The 16 demonstration centers encompassed a wide range of interests, emphases, objectives, and activities within the vocational-career education field. The demonstration center technique is used as a means of informing practitioners about a particular program or concept. It is a dissemination technique. Each center is described in the report. The findings were obtained by interview, questionnaire, and observation, and are extensively reported with interpretive commentary. Ten pages of conclusions and recommendations are organized with reference to the original nine questions; the research instruments and correspondence are appended. (Author/AJ)