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I am a professor of statistics and political science at Columbia University and author of Bayesian Data Analysis (with John Carlin, Hal Stern, and Donald Rubin), Teaching Statistics: A Bag of Tricks (with Deborah Nolan), Data Analysis Using Regression and Multilevel/Hierarchical Models (with Jennifer Hill), and, most recently, Red State, Blue State, Rich State, Poor State: Why Americans Vote the Way They Do (with David Park, Boris Shor, Joe Bafumi, and Jeronimo Cortina).
November 28, 2009
Mark Rank and Thomas Hirschl recently published an estimate that 50% of American kids are on food stamps at some point during their first twenty years of life. Their estimate is based on an analysis of data from the Panel...
Posted by Andrew Gelman at 6:44 PM • 5 Comments • 0 TrackBacks
. . . where shooting someone in the head gets you four months in jail and a $1200 fine. Not a biggie, though--apparently it was only a "warning shot." More generally, I don't know that prison is the solution to...
Posted by Andrew Gelman at 4:32 AM • 11 Comments • 0 TrackBacks
November 27, 2009
If this stuff is for real, it's really impressive. (Link from Aleks's twitter.)...
Posted by Andrew Gelman at 9:36 AM • 3 Comments • 0 TrackBacks
November 26, 2009
Julien Emile-Geay writes about a postdoc opportunity for a postdoc in climate dynamics, applied statistics, or applied mathematics: "Beyond the Hockey Stick: new approaches to paleoclimate reconstruction"...
Posted by Andrew Gelman at 3:27 PM • 2 Comments • 0 TrackBacks
This is all standard physics. Consider the two-slit experiment--a light beam, two slits, and a screen--with y being the place on the screen that lights up. For simplicity, think of the screen as one-dimensional. So y is a continuous random...
Posted by Andrew Gelman at 2:53 AM • 6 Comments • 0 TrackBacks
November 23, 2009
I added a few entries recently. Currently, we have the following (in no particular order): Mister P The Secret Weapon The Superplot The Folk Theorem The Pinch-Hitter Syndrome Weakly Informative Priors P-values and U-values Conservatism WWJD Theoretical and Applied Statisticians...
Posted by Andrew Gelman at 1:52 PM • 0 Comments • 0 TrackBacks
Seth reports on a report, funded by the sugar industry, that found bad effects of a diet soda additive called Splenda. The background of the study is a delightful tangle. Seth reports: One of the authors of the Duke study...
Posted by Andrew Gelman at 12:18 AM • 4 Comments • 0 TrackBacks
November 22, 2009
A colleague sent me an article by Harry Selker and Alastair Wood about the rules for comparative effectiveness research ("evidence-based medicine") in the House and Senate versions of the health-care bill. The key point: The [Senate] Finance Committee bill also...
Posted by Andrew Gelman at 12:19 PM • 2 Comments • 0 TrackBacks
Christopher Nelson writes: Check out the GDP chart under "The New Triad" here: It's supposed to compare GDP in China, India, and the US for three time periods but for my money, it's composed wrong. The bars should be for...
Posted by Andrew Gelman at 11:49 AM • 3 Comments • 0 TrackBacks
November 21, 2009
Jimmy points me to this article, "Why most discovered true associations are inflated," by J. P. Ioannidis. As Jimmy pointed out, this is exactly what we call type M (for magnitude) errors. I completely agree with Ioannidis's point, which he...
Posted by Andrew Gelman at 3:22 PM • 3 Comments • 0 TrackBacks
