Even well-constructed and carefully implemented sample surveys may not be answered by every Class Member. This non-response to a survey by some Class Members can pose significant problems if not identified and addressed appropriately. In some cases, incorrectly handled non-response by Class Members can undermine the entire survey. It is therefore essential that statistics based on sample surveys identify and address issues resulting from non-response before biases damage critical information. This presentation will pay special attention to how a valid statistical sample is implemented and how valid statistical results can be extracted when sample responses are incomplete. Additionally, it will focus on practical tests and methods to minimize the bias that can result from non-response. Issues to be discussed include:

• How non-response bias impacts the fundamental assumptions of scientifically based samples
• How to assess the impact of non-response on the critical survey information
• What types of methods can correct for the potential sampling problems resulting from non-response
• How to find the additional information and data that can be used to correct for the potential non-response bias

Join AACG’s Dr. Daniel S. Levy and Dr. Audrius Girnius as they discuss how to navigate this important statistical issue at the core of many Wage and Hour analyses, and highlight the solutions that can help you avoid a dangerous pitfall in the analysis of Wage and Hour matters.

About the Presenters:

Dr. Daniel S. Levy, National Managing Director, assists attorneys with economic, statistical and computing analyses in discrimination and other labor-related cases. In various areas of litigation, he has served as an expert witness for plaintiffs and defendants, including private companies, the Department of Labor, the Securities and Exchange Commission, the Department of Justice, and the Internal Revenue Service and has presented his research to the FBI, US Postal Service, the Environmental Protection Agency, and New York State Attorney General’s Office.

Prior to founding Advanced Analytical Consulting Group, Dr. Levy was the National Managing Principal of Economic and Statistical Consulting for Deloitte Financial Advisory Services LLP. He also served as the Global Director of Economic Consulting for Arthur Andersen’s Value Solutions practice. He has also held research and consulting positions at Charles River Associates, The RAND Corporation, Needham, Harper Worldwide Advertising, SPSS Inc. and The University of Chicago Computation Center. Dr. Levy received a PhD and an AB with Special Honors in Economics from The University of Chicago.

Dr. Audrius Girnius, Senior Economist, has assisted employers with proactive pay studies and supported experts on a variety of Labor and Employment discrimination matters.  Prior to joining Advanced Analytical Consulting Group, Dr. Girnius was a Senior Manager / Director at Grant Thornton and Huron Consulting Group. He earned a PhD in Economics from The University of Chicago and has refereed for the Journal of Political Economy. He also has presented at the National Bar Association Labor and Employment Law Conference.