Jason Daubert and Eric Schuller were minors born with birth defects. The minors and their parents (Daubert) (plaintiffs) brought suit against Merrell Dow Pharmaceuticals (Merrell) (defendant), alleging that its product, Bendectin, caused the defects. Daubert brought forth the testimony of eight scientific experts who had concluded that Bendectin could cause birth defects. However, the district court granted Merrell’s motion for summary judgment and the United States Court of Appeals for the Ninth Circuit affirmed because Daubert’s experts’ opinions were based on scientific techniques that were not “generally accepted” in the scientific community and as a result, their testimony was not admissible under Frye v. United States 293 F.1013 (D.C. Cir.1923). The United States Supreme Court granted certiorari to determine the proper standard for admitting expert testimony of scientific knowledge.