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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: TimF who wrote (486138)	6/5/2009 10:18:07 PM
From: TimF	Read Replies (1) \| Respond to of 1575678

Readers Respond on Medical Bankruptcy 05 Jun 2009 05:34 pm Susan Feinberg of Rutgers Business School writes: I'm a professor at Rutgers and an economist. After reading your piece, I had a look at the article and a few things came out clearly. First, it's somewhat shocking that the authors in the paper tolerated a nearly 50% attrition in the sample in conducting phone interviews. 906 out of 2314 people who filled out surveys couldn't be contacted? There is a huge selection problem here. One can think of all kinds of reasons why people who were contactable might disproportionately suffer from medical conditions. Many of the 906 "disappeared" people doubtless moved on - physically - because they could. One could speculate ad infinitum on systematic differences between the 1032 interviewees and the 906 "disappeared." But the problem is, these 906 are lost, and it would idle speculation... meganmcardle.theatlantic.com