LitigationClass Actions
Class Certification Expert Checklist
This checklist covers the expert work that decides a class certification motion, from selecting the expert to preserving the record for appeal. It opens with selection and engagement criteria, then the data foundation that every quantitative model rests on, including the dictionary and validation steps that prevent months of dispute. Model construction sections address fit to the certified theory, specification, benchmark integrity, aggregation, and the member-level output the court will ask for. The defence attack section covers quantifying uninjured members, the false positive test, disaggregation, and replication. Method-specific sections cover regression, conjoint, and event study evidence. Later sections cover the Rule 702 motion, expert depositions and code production, the certification hearing including live and concurrent testimony, and the findings and deadlines the appellate record requires.