--- title: "Court Upheld the Actuarial Expert’s Methodology for Calculating Damages" meta: "og:description": "The actuarial expert adequately explained and disclosed the adjustments and assumptions he made when dealing with what he reasonably believed to be deficient data" "og:title": "Court Upheld the Actuarial Expert’s Methodology for Calculating Damages" author: "Expert Witness Profiler" description: "The actuarial expert adequately explained and disclosed the adjustments and assumptions he made when dealing with what he reasonably believed to be deficient data" --- # Court Upheld the Actuarial Expert’s Methodology for Calculating Damages Posted on July 15, 2025 by Expert Witness Profiler Plaintiffs Timothy Scott, Patricia Gilchrist, Karen Fisher, Helen Maldonado-Valtierra, Dan Koval, Judy D. Duff, John Griffin, Kenneth Rhodes, Judy Dougherty, John Kelly, Richard Walshon, Jennifer Fryer, and Vince Carabba alleged that Defendants AT&T Inc., the AT&T Defined Benefit Plan, and AT&T Services, Inc. (collectively AT&T) have violated the Employee Retirement Income Security Act of 1974 (ERISA). Apparently, AT&T Defined Benefit Plan (the Plan) did not calculate and disburse “Joint and Survivor Annuities” (JSA) in a manner consonant with ERISA. Plaintiffs said that the Plan failed to treat JSA and Single Life Annuity (SLA) participants in an actuarily equivalent fashion by using “mortality assumptions” that are “fifty years out of date,” which resulted in the “payment of a benefit that is less” than the JSA beneficiaries were entitled to. In response, Defendants filed a motion to exclude the opinions of Plaintiff’s proffered expert, [Ian H. Altman](https://expertwitnessprofiler.com/expert-witness/Ian-Altman/1519964), under [Rule 702](https://www.law.cornell.edu/rules/fre/rule_702#:~:text=Rule%20702%20sets%20forth%20the,is%20a%20relatively%20narrow%20inquiry.). ## **Actuarial Expert Witness** [Ian H. Altman](https://expertwitnessprofiler.com/expert-witness/Ian-Altman/1519964) is a Fellow of the Society of Actuaries and an Enrolled Actuary. He was the founding partner and manager of Altman & Cronin Benefit Consultants, which was established in 1996. His firm merged with Gallagher Benefit Services, Inc. in 2016. Since his separation from Gallagher in 2020, he has worked as an independent consulting actuary in the employee benefits field. [Get the full story on challenges to Ian H. Altman’s expert opinions and testimony with an in-depth Challenge Study](https://expertwitnessprofiler.com/order/add?eId=1519964&pId=3). ## **Discussion by the Court** AT&T said that Altman’s opinions about the Plan’s conversion factors’ failure to achieve actuarially equivalent results is unreliable because his preferred methodology assertedly did not establish the “bottom” of the range of actuarially equivalent results, and the claim that his methodology is “conservative” rests on no more than ipse dixit. However, the Court held that Altman relied on his decades of experience and reliable evidence about industry practice to opine that the Plan’s conversion factors do not generate actuarially equivalent JSA benefits because the underlying assumptions are outdated and unreasonable. For Altman’s methodology for calculating “damages,” AT&T said that there are several discrete mistakes that render his opinion unreliable. However, Plaintiffs emphasized guidance in the Actuarial Standards of Practice (ASOP), published by the Society of Actuaries, that provided that an actuary may apply “judgmental adjustments or assumptions” where “accurate and complete [data] may not be available” so long as the use of such adjustments or assumptions is disclosed. Altman adequately explained and disclosed the adjustments and assumptions he made when dealing with what he reasonably believed to be deficient data, and AT&T did not demonstrate those assumptions were so outlandish that no reasonable actuary would make them. Altman also explained why, based on his experience, the pop-up benefit should not be considered, because it is a benefit separate from the JSA benefit that offers “no value to the surviving beneficiary.” AT&T’s final objection goes to Altman’s inclusion of participants who received benefits in the form of both a partial lump sum and JSA is not grounds for exclusion, as the contention at bottom is not about his methodology’s reliability but about whether the resultant JSA benefits are “qualified” or subject to the statutory actuarial equivalency requirement despite the partial lump sum election. ## **Held** In conclusion, the Court denied the Defendants’ motion to exclude the opinions of Plaintiff’s proffered expert, Ian H. Altman, without prejudice to renewal at trial as to specific calculations, as the evidence and circumstances warrant. ## **Key Takeaway**: Altman’s opinions are grounded in evidence and sound actuarial methods and therefore will be put through the crucible of vigorous cross examination at trial. ## **Case Details:** --- ## **You Might Also Like** ![Corrections Expert's Standard of Care Testimony Admitted](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2026/04/blog-pic-640X480-2026-04-23T161938.085.jpg) [**Corrections Expert’s Standard of Care Testimony Admitted**](https://expertwitnessprofiler.com/court-upheld-the-actuarial-experts-methodology-for-calculating-damages/corrections-experts-standard-of-care-testimony-admitted)![Human Resources Expert Allowed to Opine on Termination](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2026/04/blog-pic-640X480-2026-04-22T200052.311.jpg) [**Human Resources Expert Allowed to Opine on Termination**](https://expertwitnessprofiler.com/court-upheld-the-actuarial-experts-methodology-for-calculating-damages/human-resources-expert-allowed-to-opine-on-termination)![Neuropsychology Expert Not Allowed to Opine on Cognitive Decline](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2026/04/blog-pic-640X480-2026-04-22T144728.528.jpg) [**Neuropsychology Expert Not Allowed to Opine on Cognitive Decline **](https://expertwitnessprofiler.com/court-upheld-the-actuarial-experts-methodology-for-calculating-damages/neuropsychology-expert-not-allowed-to-opine-on-cognitive-decline)![Human Factors Expert Not Allowed to Opine on the Tile](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2026/04/blog-pic-640X480-2026-04-21T191749.960.jpg) [**Human Factors Expert Not Allowed to Opine on the Tile**](https://expertwitnessprofiler.com/court-upheld-the-actuarial-experts-methodology-for-calculating-damages/human-factors-expert-not-allowed-to-opine-on-the-tile)![Insurance Expert Not Allowed to Opine on Legal Duties](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2026/04/blog-pic-640X480-2026-04-21T155751.487.jpg) [**Insurance Expert Not Allowed to Opine on Legal Duties**](https://expertwitnessprofiler.com/court-upheld-the-actuarial-experts-methodology-for-calculating-damages/insurance-expert-not-allowed-to-opine-on-legal-duties)