VPG was founded in 2007 by Drs. R.J. Wirth and Michael C. Edwards as a psychometric consulting company providing clients with the most up-to-data methods to meet their scale development, assessment, and general data analysis needs. In 2010, Dr. Li Cai formally joined the company as a third managing partner and, with his arrival, VPG was able to expand its mission to offer state-of-the-art psychometric, statistical, and data collection software.
Today VPG consists of fourteen employees as well as access to high-quality contractors in the fields of statistics/psychometrics, qualitative research, programming, and interface design, all of whom have been rigorously vetted and hold advanced degrees in their fields of expertise. We serve academic, government, and corporate clients and have been an integral part of successful teams whether its winning competitive government contracts or bringing new drugs to market. Our clients have access to cutting edge research in the science of measurement, but with a focus on choosing the best tool to solve the problem at hand. We pride ourselves on the ability to help our clients with practical applications of rigorous psychometric methods and strategy.