This study sought to identify the most important, unanswered research questions in health education. Respondents consisted of 21 health educators selected by a panel of experts. The research methodology employed was a three round Delphi technique in which participants were asked to identify five significant research questions in health education in the first round, and consequently rate those questions in rounds 2 and 3. The questions were then rated on the Likert scales of Importance, Desirability, and Feasibility. The question rated highest on the scale of Importance and Desirability was: "What are the critical factors which enhance or detract from successful implementation and maintenance of health education programs in schools and communities and do they change over time?" Highest on the Feasibility scale was: "What outcomes can we realistically expect school health education to achieve at the various stages of development (K-12)?" The areas which seemed most pertinent to future health education research included defining parameters of health education, quality of professional preparation, ethics of behavioral change strategies, evaluation and efficacy of health education, and methodology of health education. Tables are appended on the ranking of the 47 important unanswered research questions identified in the study, and on the 10 highest and lowest rated questions. (Author/JD)