Stephenson and Stephenson Research and Consulting, LLC (SASRAC) was established in 2016 by Mark R. Stephenson, Ph.D. and Carol M. Stephenson, Ph.D. after retiring from long careers with The Centers for Disease Control and Prevention/National Institute for Occupational Safety and Health.  

Our purpose is to provide research and consulting services focused on addressing issues related to occupational and environmental safety and health, particularly with respect to audiology, bioacoustics, and hearing conservation. We also offer general research support regarding health and safety training effectiveness and health communication issues.  

We have expertise to address a broad spectrum of needs ranging from basic and applied research, data analysis and reporting, and translational research. We can also provide expert witness services.