The document discusses developing a research agenda for impact evaluation of development programs. It proposes that the agenda should: 1) Cover different types and purposes of evaluations, questions addressed, users, and those conducting evaluations. 2) Be developed through consultation with various stakeholders and review of existing documentation and examples. 3) Include different types of research like documenting current practices, trials of methods, and longitudinal studies of impact evaluations. 4) Address important questions like how to involve communities and accommodate different views of evidence, and how to represent complex interventions and identify unintended impacts. Support is needed to develop the agenda through legitimate processes and interdisciplinary cooperation.