Battle of the Experts—Deploying the Proper Scientific Methodology for Supporting or Challenging Claims Battle of the Experts – Deploying the Proper Scientific Methodology for Supporting or Challenging Claims - March 2015 by Sarah Butler, Vice President at NERA Economic Consulting, Daniel M. Ennis Ph. D., President at The Institute for Perception, Bruce Isaacson DBA, President at MMR Strategy Group, Robert N. Reitter, Claim Substantiation & Advertising Perception Services & Consulting