Wisconsin Center for Education Research School of Education • University of Wisconsin–Madison • http://www.wcer.wisc.edu/ WCER Working Paper No. 2005-8 September 2005 Epistemography and the Participant Structures of a Professional Practicum: A Story Behind the Story of Journalism 828 David Williamson Shaffer Department of Educational Psychology/ Wisconsin Center for Education Research/ Academic ADL Co-Laboratory University of Wisconsin–Madison dws@education.wisc.edu