In defense of valid design as a policy rule.
Evans
Emily L
EL
Department of Philosophy, Georgetown University, 215 New North/37th and O Streets NW, Washington, DC 20057, USA. ele4@georgetown.edu
D002986:Clinical Trials as Topic / Q000941:ethics*; D032984:Ethics, Research; D019317:Evidence-Based Medicine / Q000941:ethics*; D006291:Health Policy; D006805:Human Experimentation / Q000941:ethics*; D006801:Humans; D017410:Practice Guidelines as Topic / Q000592:standards; D012107:Research Design / Q000592:standards*