Serving as a human factors psychologist and expert witness with more than 45 years of professional experience, this expert analyzes human behavior, perception, and decision-making in accident and safety-related events. Their work focuses on human factors psychology and accident analysis involving injuries and fatalities in consumer, transportation, and recreational environments. With more than 25 years of expert witness experience, the expert has provided litigation consultation, deposition testimony, and courtroom testimony in cases addressing accident causation, supervision standards, warnings and labeling, and behavioral risk factors.

The expert’s human factors analysis addresses several recurring accident contexts. One area involves injuries to children and adolescents, including incidents associated with inadequate supervision, unsafe activities, or hazardous environments in schools, day care settings, and recreational facilities. Related work examines aquatic injuries and drownings, including evaluation of lifeguard vigilance, supervision practices, and safety signage. Additional areas of analysis include pedestrian accidents, vehicle collisions involving left turns across traffic, and incidents involving older adults, including slips, trips, and falls. The expert holds doctoral, master’s, and bachelor’s degrees in fields related to experimental social psychology and behavioral science, as well as a law degree. Admitted to the State Bar of California and the State Bar of Washington. Professional affiliations include membership in the American Psychological Association. Scholarly work includes more than 280 publications addressing accident analysis, pedestrian behavior, lifeguard vigilance, warnings, and safety-related human behavior research.

Another focus of the expert’s work involves human interaction with products and safety communications. This includes evaluation of warnings, instructions, labeling, packaging, and readability issues affecting how consumers understand and respond to safety information. The expert has also analyzed defective consumer products, shopping cart accidents, household products, and safety risks associated with toys and recreational equipment. In these contexts, their work involves behavioral analysis of product use, risk perception, and consumer response to safety information. The expert’s consulting activities also include product testing for liability issues, accident reconstruction and simulation, usability analysis of software and web-based systems, and statistical modeling of accident patterns and human behavior.

Professional experience includes academic leadership and teaching in human factors research, social psychology, and statistical analysis. The expert served for many years as a professor specializing in human factors and data science and later directed a population research laboratory focused on behavioral and statistical research. The expert also founded a human factors consulting practice providing accident analysis, product evaluation, and statistical analysis services. The expert has handled more than 100 expert witness cases involving human behavior and safety issues.