Joseph Cohen is a board-certified ergonomist and hazard control manager who provides technical and scientific advisory support on legal and regulatory matters involving human factors, ergonomics, and safety. Various companies and organizations have hired Joseph to manage projects across industries and settings including but not limited to construction, energy generation, food service, consumer products, industrial products, warehousing, hospitality, and retail sales. 

Dr. Cohen is a Professional Member of the American Society of Safety Engineers and the Human Factors and Ergonomics Society. His professional service includes immediate past-President of the Board of Certification in Professional Ergonomics and the Finance and Budget Committee of the Human Factors and Ergonomics Society. Dr. Cohen's research and writings on pedestrian falls, hazard communications, and forensics have been published in books, journals, and trade publications. He holds four degrees, including a B.A. in psychology from the University of California, Riverside, M.A. degree in human factors psychology from California State, Northridge and M.S. and Ph.D. degrees in industrial/organizational psychology from Alliant International University, San Diego where he received the award "Outstanding Doctor of Philosophy". 

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Cindy LaRue is a board-certified ergonomist with nearly 25 years of professional experience. She began her career as a software quality engineer with General Dynamics, shifting her emphasis to human factors engineering with companies Safety Sciences, Inc. and Error Analysis (formerly known as Cohen & Associates).

Cindy’s research and consulting activities in ergonomics and safety include but are not limited to pedestrian safety, ladders, warnings and risk communications. She participated in the 2007 ASTM Tribometry Workshop and associated studies at the USC. She has authored or co-authored several peer-reviewed articles and book chapters in authoritative human factors/ergonomics and safety publications. She is a co-author of the book, Slips, Trips, Missteps and their Consequences (Second Edition) by Lawyers & Judges Publishing Company.

Cindy holds a B.S. in Industrial and Systems Engineering from The Ohio State University with an emphasis in Human Factors Engineering and an M.S. in Systems Management from the USC. She is a member of the Human Factors and Ergonomics Society. Cindy is actively pursuing certification as an operator of the English XL tribometer for evaluating walking surfaces.

Harvey Cohen received his Ph.D. in Human Factors/Ergonomics from North Carolina State University in 1972, being awarded both doctoral and post-doctoral research fellowships with the National Aeronautics and Space Administration (NASA) at the Langley Research Center in Hampton, VA. He later became a senior research scientist with the National Institute for Occupational Safety and Health (NIOSH) in Cincinnati, Ohio prior to forming his own ergonomics safety research and consulting firms in 1977. 

Dr. Cohen is board certified in both ergonomics and safety, and is a fellow of the Human Factors and Ergonomics Society in the U.S. and the Institute of Ergonomics & Human Factors in the United Kingdom. He is a founding member of the Board of Certification in Professional Ergonomics (BCPE) and is a member and/or scientific contributor to several standards committees, including ASTM F15 Consumer Products and ANSI Z535 dealing with safety signs, product warning labels, and collateral materials such as operator and user manuals.  Dr. Cohen is the U.S. ANSI representative and designated expert to the International Standards Organization's committee on accessibility and usability of products and facilities by older persons and the disabled. He has also held several appointments as Adjunct Professor in graduate schools including the University of Southern California and San Diego State University.

Dr. Cohen has written over 150 scientific publications in the ergonomics and safety fields and is frequently called upon to provide forensic consulting and expert witness services in accident litigation cases.  Dr. Cohen specializes in premises, products, commercial, transportation, recreational and workplace accident causation and analyses resulting in fatal injuries and other catastrophic losses.

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Kristy Norris joined the Error Analysis team in 2002.  Her primary responsibilities are case and file management, which includes the receipt and processing of documents and other materials provided by our clients.  Ms. Norris also serves in a research capacity, systematically investigating and studying case and company business.  Her daily activities include coordination of consultant activities and management of the firm's information technology. Kristy holds bachelor's degree from the University of California, San Diego, as well as various technical and clerical certifications.

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Linda Norris is the firm's Office Manager.  She is typically the initial point of contact for clients.  She has overseen administrative staff and clerical activities during her 20-plus year tenure with Error Analysis.  Her primary responsibilities include but are not limited to consultant retention, bookkeeping, billing, scheduling, travel arrangements, and collections.

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San Diego: (619) 464-4427

New Publications

Cohen, H.H., & Sloan, G.D. (2016). The science behind codes and standards for safe pedestrian walkways: Lighting and visual cues. Applied Ergonomics52, 112-119.

Cohen, H.H., & Cohen, J. (in press). Fall forensics: principles and applications. In Hsiao (Ed.) Fall Prevention and Protection: Principles, Guidelines, and Practices. CRC Press; Boca Raton, FL.

Bakken, G.M., Cohen, H.H., & Cohen, J. (in development - due in 2016). Slips, Trips, Missteps and Their Consequences (Third Edition). Tucson, AZ: Lawyers & Judges Publishing Company, Inc.



01 Joseph Cohen named associate editor of Ergonomics in Design by Sage Publications.

02 Harvey Cohen named Director of the Foundation for Professional Ergonomics, a non-profit organization dedicated to advancing professionalism in ergonomics through educational activities and awards.

03 Joseph Cohen elected President of the Board of Certification in Professional Ergonomics