• Creating structured and flexible models: some open problems (Presented at the New York City R meetup, 7 Oct 2010)

• Why we (usually) don't have to worry about multiple comparisons (Presented at a workshop at Columbia University on estimating effects and correlations in neuroimaging data, 15 July 2009)

• Red states, blue states, and political polarization (Presented at the 10th anniversary celebration of the Center for Statistics and Social Sciences, University of Washington, 5 June 2009)

• Rich state, poor state, red state, blue state: why Americans vote the way they do (Presented at the Authors@Google series, Mountain View, California, 20 March 2008)

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