Social science and policy
One of the important reasons that we value scientific knowledge is the possibility that it will allow us to intervene in the world to solve problems that we care about. Good climate science allows us to have high confidence in the causes of global climate change; and it also provides a sound basis for policy interventions to help to mitigate the pace of climate change. Good cellular biology permits a better understanding of autoimmune disease; and it also suggests avenues for prevention and treatment. There is thus an important component of pragmatism in our esteem for scientific knowledge. In the social sciences we would like to assume that something similar is possible. If we have good sociological understanding of the causes of teen pregnancy or gang violence, perhaps that understanding will also provide a basis for designing effective interventions that reduce the incidence of the social problems we study. In other words, perhaps we can count on social science to provide a valuable...