Disparate Impact Expert Witnesses

Alaska

Statistics - Epidemiology, Election analysis, Damages estimation, Infectious disease (COVID-19), Business interruption, Medical malpractice, Disparate impact, Statistical analysis and modeling, Analysis of complex data, Data science, Artificial Intelligence, Machine learning, Visualizations

Dr. Aleksandr Aravkin is a statistical expert witness and tenured faculty member at the University of Washington, where he serves as Associate Professor of Applied Mathematics and Director of Mathematical Sciences at the Institute for Health Metrics and Evaluation (IHME). He brings more than 15 years of hands-on experience building, validating, and explaining complex statistical models—expertise he applies to high-stakes litigation across civil and criminal matters. Dr. Aravkin has worked with state Attorneys General of Washington, Colorado, Oregon, and Kansas and with top law firms including Perkins Coie, Pillsbury, and Ballard Spahr. He has been deposed seven times and is known for delivering clear, defensible, and practical testimony. His litigation work spans election analysis, COVID-19 business-interruption claims, medical malpractice, damages estimation, general statistical analysis, and custom data analyses tailored to case-specific questions, including translating physical ...

California

Behavioral and Social Sciences, Police Practices & Procedures - Discrimination, Disparate Impact, Disparate Treatment, Racial Bias, Racial Profiling, Police Benchmarking, Stop Disparities, Search Disparities, Force Disparities, Selective Enforcement, Fourth Amendment, Consent Decree, Pattern & Practice, Racial Justice Act & RIPA, Section 1983, Monell Claim, Econometrics, Statistics, Long Motion

Professional Overview Dr. Matthew B. Ross is a nationally recognized authority in the quantitative analysis of administrative policing data and its application in high-stakes civil rights litigation. As an Associate Professor of Public Policy & Economics at Northeastern University, Dr. Ross’s scholarship bridges the gap between high-level econometric research and practical legal application. He specializes in identifying and mitigating racial and ethnic disparities within the criminal justice system through the implementation of advanced statistical modeling and causal inference. Dr. Ross received his PhD in Economics from the University of Connecticut in 2016. Dr. Ross offers clients a rigorous, peer-reviewed econometric approach designed to withstand the most intensive Daubert and Frye challenges. His reputation is built on a dual ability to maintain scientific integrity while providing a communication style that translates complex statistical findings into a digestible, compelli...

Boston, Massachusetts

Behavioral and Social Sciences, Police Practices & Procedures - Discrimination, Disparate Impact, Disparate Treatment, Racial Bias, Racial Profiling, Police Benchmarking, Stop Disparities, Search Disparities, Force Disparities, Selective Enforcement, Fourth Amendment, Consent Decree, Pattern & Practice, Racial Justice Act & RIPA, Section 1983, Monell Claim, Econometrics, Statistics, Long Motion

Professional Overview Dr. Matthew B. Ross is a nationally recognized authority in the quantitative analysis of administrative policing data and its application in high-stakes civil rights litigation. As an Associate Professor of Public Policy & Economics at Northeastern University, Dr. Ross’s scholarship bridges the gap between high-level econometric research and practical legal application. He specializes in identifying and mitigating racial and ethnic disparities within the criminal justice system through the implementation of advanced statistical modeling and causal inference. Dr. Ross received his PhD in Economics from the University of Connecticut in 2016. Dr. Ross offers clients a rigorous, peer-reviewed econometric approach designed to withstand the most intensive Daubert and Frye challenges. His reputation is built on a dual ability to maintain scientific integrity while providing a communication style that translates complex statistical findings into a digestible, compelli...

Bend, Oregon

Employment, Human Resources - employment discrimination, employment testing, job analysis, Promotional exams, industrial-organizational psychology, disparate impact, test validation, public safety hiring, Promotional assessments, Assessment centers, employment assessment validity, test development and validation, adverse impact

Dr. Fred Rafilson, Ph.D., is one of the nation’s leading experts in public safety (and private sector) assessment validity, fairness, and litigation support. With over 35 years of experience, including landmark test development work, defended and upheld by the U.S. Supreme Court, and a recent $40M verdict for the Plaintiff in Spencer v. Tatum, Dr. Rafilson provides expert consulting and testimony for law firms, public safety agencies, and unions facing employment-related litigation. * Proven expert testimony in high-value judgments * 35+ years of experience in I/O Psychology and assessments * Founder & former owner/CEO of I/O Solutions, a national public safety assessment firm * Authored 30+ employment exams assessing cognitive ability and personality traits * Served as an expert for DOJ Employment Litigation Division in public-safety testing * Collaborated with hundreds of public safety agencies, Fortune 500 firms, and government entities * Provided expert services for enterpri...

Shoreline, Washington

Statistics - Epidemiology, Election analysis, Damages estimation, Infectious disease (COVID-19), Business interruption, Medical malpractice, Disparate impact, Statistical analysis and modeling, Analysis of complex data, Data science, Artificial Intelligence, Machine learning, Visualizations

Dr. Aleksandr Aravkin is a statistical expert witness and tenured faculty member at the University of Washington, where he serves as Associate Professor of Applied Mathematics and Director of Mathematical Sciences at the Institute for Health Metrics and Evaluation (IHME). He brings more than 15 years of hands-on experience building, validating, and explaining complex statistical models—expertise he applies to high-stakes litigation across civil and criminal matters. Dr. Aravkin has worked with state Attorneys General of Washington, Colorado, Oregon, and Kansas and with top law firms including Perkins Coie, Pillsbury, and Ballard Spahr. He has been deposed seven times and is known for delivering clear, defensible, and practical testimony. His litigation work spans election analysis, COVID-19 business-interruption claims, medical malpractice, damages estimation, general statistical analysis, and custom data analyses tailored to case-specific questions, including translating physical ...