Plaintiff Expert vs. Defense Expert: Is the Methodology Different?
Plaintiff Expert
A vocational, life care planning, or economic expert retained by the plaintiff.
Defense Expert
A vocational, life care planning, or economic expert retained by the defense.
| Dimension | Plaintiff Expert | Defense Expert |
|---|---|---|
| Methodology | Same accepted methodology | Same accepted methodology |
| Credentials | CRC, CVE, ABVE, CLCP, Ph.D. as applicable | Same |
| Standards | CRCC/IARP/IALCP ethics + scope | Same |
| Typical disagreement source | Input assumptions, record weighting | Same |
When to use Plaintiff Expert
Retain when representing an injured claimant or a plaintiff in litigation.
When to use Defense Expert
Retain when representing a defendant or insurer.
Where they overlap
The methodology, standards, and credentials are the same on both sides (Commission on Rehabilitation Counselor Certification, 2023). KWVRS accepts engagements from both plaintiff and defense and applies the same objective methodology regardless of retaining party.
Frequently Asked Questions
Should I avoid an expert who has primarily worked for the other side?
Not categorically. An expert with balanced experience on both sides is often more credible under cross-examination. KWVRS retains a balanced caseload by policy.
Do plaintiff and defense experts always disagree?
No. Experts frequently agree on baseline facts and disagree on specific assumptions (worklife, discount rate, severity adjustments). Transparency on assumptions is the standard of practice.
References
- Commission on Rehabilitation Counselor Certification. (2023). Code of professional ethics for rehabilitation counselors. crccertification.comOrganization
- Testimony by Expert Witnesses, Federal Rules of Evidence. law.cornell.eduCase Law
- International Association of Rehabilitation Professionals. (n.d.). Standards and ethics: Forensic section. Retrieved July 19, 2026. rehabpro.orgOrganization
Related
Recommended next step
Discuss how this applies to your case
KWVRS provides independent, objective analysis for plaintiff and defense counsel nationwide. Tell us about the matter and we will scope the appropriate deliverable, or explore the relevant practice area below.