do with this information? Why is it important and how will it be used? It is not enough to say that genetic information may be used to help us understand what child will respond best to what intervention. Prevention scientists need to think carefully about the logistics of how that might actually play out. Because of the rapidly evolving landscape in genomics, it will also be critical for prevention scientists to collaborate closely with statistical geneticists, to ensure that genetically-informative prevention studies represent the state of the science in genetics.