Ronald Valdesarri, HHS deputy assistant secretary for health, infectious diseases, discusses a recent “two-day workshop on ‘Modeling and Evidence-Based Decision Making’ sponsored by amfAR, the Foundation for AIDS Research and cosponsored by the Kaiser Family Foundation, the National Alliance of State and Territorial AIDS Directors, and the Urban Coalition for HIV/AIDS Prevention Services” in this AIDS.gov blog post. “Good models should always be clear about the inputs and assumptions that were used to generate the results. And perhaps most importantly, they should be used to guide rather than to conclude any discussions about how best to allocate resources,” he writes (8/1).