http://knowledge.wharton.upenn.edu/ Knowledge@Wharton is an online resource that offers the latest business insights, information, and research from a variety of sources. Content includes analysis of current business trends, interviews with industry leaders and faculty, articles based on the most recent business research, book reviews, conference and seminar reports, and links to other websites. en-us Copyright (c) 2009 The Wharton School of the University of Pennsylvania http://www.wharton.upenn.edu/faculty/jensen_shane.jpg http://www.wharton.upenn.edu/faculty/ 125 45 Wharton Faculty Research Law and Public Policy http://knowledge.wharton.upenn.edu/article.cfm?articleid=1928&source=rss When a report prepared by former Senator George J. Mitchell indicated that Roger Clemens and others used illegal, performance-enhancing drugs, a marketing agency prepared a voluminous report that relied on statistics to make the case for Clemens' innocence. But an article written by four Wharton faculty -- Justin Wolfers, Shane Jensen, Abraham Wyner and Eric Bradlow -- questions the methodology used by the marketing agency, noting that the validity of any statistical analysis is only as good as its individual components. And these components, they add, can be easily misinterpreted. Wed, 02 Apr 2008 17:52:07 EST