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Event Details
Christopher Winship
Diker-Tishman Professor of Sociology
Harvard University
will present work co-authored by:
Felix Elwert, University of Wisconsin
Abstract: A wide variety of seemingly disparate sources of bias, from nonresponse in a respective study, conditioning on a post treatment outcome, ascertainment bias, to controlling on lagged outcome, can all be understood as resulting for conditioning on an endogenous variable. Using Pearl’s graphical theory for causal structures, we provide a unified theory and show how in all these situations bias results from conditioning on what Pearl calls a “collider” variable. Multiple examples are presented and analyzed.
Sponsored by the Boston Chapters of the American Statistical Association and we appreciate Buckingham Browne and Nichols for hosting.
Time: 6:15 PM light dinner, 7:00 PM lecture
The event will be held in the auditorium, second floor of the BB&N Upper School ,
80 Gerry's Landing Road
Cambridge, MA 02138.
Parking is in the lot immediately past the school at the end away from Mt Auburn Hospital.
To register by check, include the check made payable to BCASA, your name, affiliation, and mail by April 12th to:
Huichao Chen, PhD
Department of Biostatistics/CBAR
Harvard University
651 Huntington Ave, FXB502
Boston, MA 02115
When & Where
Buckingham Browne & Nichols Upper School
80 Gerry’s Landing Road
Cambridge,
MA 02138
Monday, May 2, 2011 from 6:15 PM to 8:00 PM (ET)
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Hosted By
Boston Chapter of the American Statistical Association
