United States District Court, D. Colorado
MAHAMET CAMARA, MOUSSA DEMBELE, ANDRE DeOLIVEIRA, BEMBA DIALLO, SALIF DIALLO, MACIRE DIARRA, ERNIE DUKE, and DEAN PATRICELLI, Plaintiffs,
MATHESON TRUCKING, INC., a California corporation; and MATHESON FLIGHT EXTENDERS, INC., a California corporation, Defendants.
ORDER GRANTING IN PART PLAINTIFFS' MOTION TO EXCLUDE EXPERT TESTIMONY AND RESERVING RULING IN PART
CHRISTINE M. ARGUELLO, District Judge.
This matter is before the Court on Plaintiffs' Motion to Exclude Expert Testimony (Doc. # 131.) Plaintiffs argue that the opinions of Defendants' rebuttal expert, Lisa Meer, should be excluded both because Ms. Meer is unqualified to offer these opinions and they are contrary to settled law.
Defendants endorsed Ms. Meer as a rebuttal expert to Plaintiffs' expert witness, Patricia Pacey, Ph.D. Among other things, Dr. Pacey will testify regarding Plaintiffs' back pay and front pay losses, including the discount rate which should be applied to any front pay damages. (Doc. # 131-1 at 11.) She will also opine regarding a statistical analysis she conducted of a four-week furlough carried out by the Defendant in December of 2010. (Doc. # 131-1 at 3-4.) Specifically, Dr. Pacey employed a "standard means" test which resulted in a statistically-significant correlation between the extent to which each employee's hours were reduced during this furlough and whether the employee was black or African. ( Id. ) This correlation remained statistically significant when Dr. Pacey ran multiple regression analyses, controlling for the additional variables of employee tenure and the shift that an employee was working when he was furloughed. ( Id. )
Plaintiffs seek to exclude two specific portions of Ms. Meer's rebuttal testimony. The first objection relates to Ms. Meer's opinion regarding the soundness of Dr. Pacey's statistical analysis, in which she states that Dr. Pacey's interpretation of the standard means test was "improper, " because
the employee data utilized for Dr. Pacey's hypothesis test fail to meet the criteria for the type of test performed. In order for the test results to be meaningful, both of the selected samples (in this case, black employees and non-Black employees or African employees and non-African employees) should be normally distributed or greater in number than 30. In this case, the sample of black employees included only 14 employees and the sample of African employees included only 8 employees. As such, the application of a t-test of two means is technically incorrect.
(Doc. # 131-4 at 56, 57-58.) Additionally, Ms. Meer will testify that the multiple regression analysis was "flawed and unreliable, " because it failed to account for other potential explanatory variables, including "the relative productivity of one employee as compared to another; the extent to which each employee attempted to pick up shifts while s/he was on-call; the qualifications of each employee (e.g., forklift experience, etc.); the contract to which each employee was assigned; whether each employee worked a day or swing shift; or whether each employee generally worked only on weekdays or also some weekend shifts." ( Id. at 58.)
Second, Plaintiffs object to Ms. Meer's testimony regarding application of a discount rate to Plaintiffs' economic damages. In particular, Ms. Meer's report argues that Dr. Pacey should have applied a discount rate to Plaintiffs' back pay losses. ( Id. at 88.) Her report also contends that the discount rate Dr. Pacey applied to Plaintiffs' front pay losses was "unreasonably low" because the rate failed to account for future events, besides investment returns and wage growth, that could have prevented the plaintiff from receiving the lost income. ( Id. at 89.)
I. STANDARD OF REVIEW
Under Daubert, the trial court acts as a "gatekeeper" of proffered expert testimony by reviewing that testimony for relevance pursuant to F.R.E. 401 and reliability pursuant to F.R.E. 702. See Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579, 589-95 (1993); see also United States v. Nacchio, 555 F.3d 1234, 1241 (10th Cir. 2009) ("the district court must satisfy itself that the proposed expert testimony is both reliable and relevant, in that it will assist the trier of fact, before permitting a jury to assess such testimony.") The "gatekeeping" requirement set forth in Daubert "applies not only to testimony based on scientific' knowledge, but also to testimony based on technical' and other specialized' knowledge." Kumho Tire Co. v. Carmichael, 526 U.S. 137, 141 (1999). The proponent of a challenged expert must demonstrate by a preponderance of the evidence that the expert's testimony and opinion is admissible. United States v. Nacchio, 555 F.3d 1234, 1241 (10th Cir. 2009); F.R.E. 702 advisory comm. notes.
Federal Rule of Evidence 702 governs the admissibility of expert testimony. Rule 702 provides that a witness who is qualified as an expert by "knowledge, skill, experience, training, or education" may testify if:
(a) the expert's scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;
(b) the testimony is based on sufficient facts or data;
(c) the testimony is the product of reliable principles and methods; and
(d) the expert has reliably applied the principles and methods to the ...