• videocam Live Webinar with Live Q&A
  • calendar_month April 30, 2026 @ 1:00 PM ET/10:00 AM PT
  • signal_cellular_alt Intermediate
  • card_travel Class Action and Other Litigation
  • schedule 90 minutes

Statistics in Class Certification and at Trial: Leveraging and Attacking Statistical Evidence

Lessons From Recent Cases on the Use of Statistics to Prove Classwide Liability and Damages

About the Course

Introduction

This CLE course will guide trial lawyers on the use of statistical analyses in class litigation.

Description

Increasingly, statistical evidence is used by both sides to argue the makeup of the class, damages, liability, and certification in every type of case: employment, data breach, ESG, antitrust, consumer product, and commercial class action cases. Economists and practitioners can use statistics to measure the impact on individual members and show where there is no impact.

Class action lawyers must be able to analyze both the methodology and inferential process that produce statistical evidence, and their effect on admissibility, relevance, and strength of the resulting evidence.

Listen as our experienced panel of practitioners examines the use of statistics in class litigation and the implications of recent case law for class litigators seeking to use or restrict these kinds of evidence during class certification and trial.

Presented By

Aphrodite Kokolis
Counsel
ArentFox Schiff LLP

Ms. Kokolis is an experienced litigator with a special practice emphasis on complex and appellate litigation, particularly the defense and settlement of class actions. She has litigated more than 100 class actions in federal and state courts across the country involving a variety of issues, including insurance coverage and claims practices, consumer fraud, environmental class actions, consumer privacy, products liability, Racketeer Influenced and Corrupt Organizations (RICO) issues, securities fraud, and distributor and franchise issues. Ms. Kokolis also writes and lectures frequently on these topics.

Kelly Lear Nordby, PhD
Economist and Managing Director
Ankura

Dr. Lear Nordby is an economist and Managing Director at Ankura based in Boston. She specializes in applying economics, econometrics, finance, and statistics to antitrust, consumer, mass torts, and other complex commercial disputes. Dr. Lear Nordby has over 20 years of experience providing clients with rigorous economic analyses of damages, loss, and class certification issues. She has submitted expert reports and provided testimony in arbitration and federal court. Dr. Lear Nordby has worked on matters involving allegations of price fixing, bundling, foreclosure, breach of contract, breach of fiduciary duty, breach of statutory duty, non-disclosure of product defects, abusive tax shelters, environmental contamination, crop damages, property value diminution, patent infringement, and patent misuse. These matters span a broad range of industries, including agriculture, airlines, automobiles, banking, chemicals, energy, freight transportation, healthcare, mortgage servicing, pharmaceuticals, retail pharmacies, vaccines, memory storage, and other consumer products.

Credit Information
  • This 90-minute webinar is eligible in most states for 1.5 CLE credits.


  • Live Online


    On Demand

Date + Time

  • event

    Thursday, April 30, 2026

  • schedule

    1:00 PM ET/10:00 AM PT

I. Overview of statistical concepts and their uses

II. Notable case law

III. Strategic considerations

The panel will review these and other key issues:

  • What are the implications of recent case law on using statistical sampling to prove classwide liability and damages?
  • What types of statistics can be introduced during certification and trial, and what are the proper ways to use them?
  • What are the most compelling challenges to the use of statistical evidence?