RT Journal Article SR Electronic T1 Health promotion research: dilemmas and challenges JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 257 OP 262 DO 10.1136/jech.55.4.257 VO 55 IS 4 A1 M A Koelen A1 L Vaandrager A1 C Colomér YR 2001 UL http://jech.bmj.com/content/55/4/257.abstract AB OBJECTIVE To analyse dilemmas and challenges in health promotion research, and to generate ideas for future development. METHOD The analysis is based on authors' experiences in working in the field of research and action in health promotion and on experiences of others as found in literature. RESULTS The assumptions underlying scientific research as based in the biomedical design are difficult to meet in community-based health promotion research. Dilemmas are identified in relation to the possibility of defining the independent and dependent variables beforehand and the intermingling of these variables (the intervention and outcome dilemma), the difficulty in quantifying the desired outcomes (the number dilemma), and the problem of diffusion of the programme to the control group (the control group dilemma). CONCLUSION Research in health promotion has specific reasons to reconsider the approach towards research, the selection of outcome variables, and research techniques. Strategies and methods to make activities and their outcomes clear are discussed and criteria to judge confidence and applicability of research findings are presented.