Summary: Statistics Expert Witness testimony not allowed even though the defendant argued that they have not been able to replicate the expert’s analysis.
Facts: This case (Stewart v. Quest Diagnostics Clinical Laboratories, Inc. et al – United States District Court – Southern District of California – October 5, 2022) involves two class action claims. The plaintiffs, Pamela Stewart and Zulekha Abdul allege that the defendant, Quest Diagnostic Clinical Laboratories, impeded its Patient Service Representatives (“PSR”) from getting rest periods. In addition, the plaintiffs allege that Black PSRs are underpaid and underpromoted compared to white PSRs. To assist in their case, the plaintiffs hired Statistics Expert Witness David Neumark to provide expert witness testimony. The defendant filed a motion to exclude this expert from testifying.


