What Is Predominance?
Predominance asks whether the shared issues in a case outweigh the issues that would need to be decided person by person.
Predominance is a Rule 23(b)(3) requirement that questions common to the class predominate over questions affecting only individual members. It applies to most class actions seeking money damages and is often the hardest certification test to meet.
Why it matters when you file a claim
Predominance quietly shapes which cases become settlements at all. Claims that depend heavily on each person's circumstances, such as what a salesperson told them or how they relied on a statement, may struggle to be certified. Cases that rest on one uniform practice, like an identical fee or a single breach, tend to clear the bar more easily.
It also helps explain why many settlements pay flat amounts. Uniform payments avoid needing to evaluate each person's losses individually.
A simple example
Consider an automatic charge applied to every account through the same billing code. Whether the charge was allowed under the standard contract is a common question, and the main remaining issue, how much each person paid, can be calculated from records. Common issues predominate.
Now consider personal injury claims from a product, where each person's injuries, medical history and causation are different. Individual questions would likely overwhelm the common ones, which is one reason those cases are often handled as mass torts instead.
How it affects settlement design
Settlements are often shaped with predominance in mind. Payment tiers usually rely on objective facts, such as whether you had an account or which model you bought, rather than on personal stories. Where individual differences matter, the settlement may create separate groups or ask for documented losses. For you, that means claims are usually decided on simple, checkable facts, which is a big part of why most consumer claims don't require a lawyer.
How it relates to other terms
- ✓Predominance is stricter than commonality, which only asks whether common questions exist.
- ✓It is paired with the superiority requirement in Rule 23(b)(3).
- ✓When predominance fails, claimants may turn to a mass tort or individual suits.
Settlements built on one shared practice are often the easiest to claim. SettleScout surfaces those that match your brands and services and reminds you before they close.
Frequently Asked Questions
Do individual damages defeat predominance?
Not automatically. Courts often accept that damages vary by person if there is a workable way to calculate them, while the core liability questions are common.
Does predominance apply to every class action?
No. It applies to Rule 23(b)(3) classes, which cover most damages cases. Classes seeking only injunctive relief under Rule 23(b)(2) don't need it.
Is predominance checked for settlement classes?
Yes, though the court doesn't need to consider whether a trial would be manageable, since there will be no trial.
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