A before-after-only health education experiment was conducted by a team of a dozen health educators, nurses, and physicians who were students and faculty of the National Institute of Preventive and Social Medicine (NIPSOM). The experiment ran several months with 162 Moslem farming families in one village. Changes in sanitation-related knowledge, attitudes, and practices were measured and correlated with social class. It is suggested that the most useful sociology in the Third World is: (a) basic general sociological theory including ecosystem as well as social system, (b) multimethological including participant –observation, survey, and field experiment methods. Implications are drawn for graduate curricula in light of the trend toward increasing enrollments from Third World countries.