Does a treatment improve patient health? Does a policy intervention improve quality of life? Does more education increase income? These are fundamental questions that are difficult to answer with standard observational approaches. The reason? Selection bias. Patients who are sick take medicine; patients who are sicker may take more medicine. Thus, one could observe that patients who take highly effective medicine have worse outcomes not because of any causal relationship but because sick people are the ones taking medicine. One way to account for selection bias is to use instrumental variables. An instrument must satisfy 3 key conditions: It must be correlated with the potentially endogenous treatment variable; It must have no direct effect on the outcome (other than through its impact on the probability of treatment); and It must be independent of the unmeasured confounders of the treatment–outcome relationship after … [Read more...] about Instrumental variables: Can I use patient level IVs to correct for endogeneity in patient characteristics?
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Paul Farhi, The Washington Post Published 10:49 am PST, Sunday, March 3, 2019 With viewers increasingly able to screen out ads with digital video recorders or turning away altogether, TV stations have tried to find new ways to increase revenue. One answer has been magazine-style programs such as "Great Day Louisiana" that seamlessly blend the look of informational and news programming with outright salesmanship, leaving viewers to figure out which is which. less With viewers increasingly able to screen out ads with digital video recorders or turning away altogether, TV stations have tried to find new ways to increase revenue. One answer has been magazine-style programs ... more Photo: Manuel Breva Colmeiro/Getty Images Photo: Manuel Breva Colmeiro/Getty Images Image 1 of / 3 Caption Close … [Read more...] about Is it news you can use? An ad? Both? On some morning TV programs, it’s hard to tell
Jill Colvin, Associated Press Updated 6:55 pm PST, Monday, January 7, 2019 The Capitol is seen as the partial government shutdown lurches into a third week with President Donald Trump standing firm in his border wall funding demands, in Washington, Monday, Jan. 7, 2019. After no weekend breakthrough to end a prolonged shutdown, newly empowered House Democrats are planning to step up pressure on Trump and Republican lawmakers to reopen the government. less The Capitol is seen as the partial government shutdown lurches into a third week with President Donald Trump standing firm in his border wall funding demands, in Washington, Monday, Jan. 7, 2019. After no ... more Photo: J. Scott Applewhite, AP Photo: J. Scott Applewhite, AP Image 1 of / 1 Caption Close Image 1 of 1 The … [Read more...] about AP Explains: Can Trump use an emergency to build his wall?
PUBLISHED: 09:00 03 September 2018 | UPDATED: 09:00 03 September 2018 David Vincent Former Lightship the LV 18, at Harwich Graham Ewens The historic LV18 - the last working lightship, is set to be towed from Harwich and up the River Orwell to Ipswich today. LV18 Lightship moored at Harwich QuayPreparations were underway over the weekend ready to lift the LV18 this afternoon, at high tide, and in a military-style operation two tugs will be involved in towing her to Ipswich and her temporary berth at Orwell Quay.The LV18 has been berthed at Harwich for the past seven years, and as well as the history of light vessels it is also a link back to the days of the pop pirates on the North Sea, with exhibitions on board, and occasional nostalgia events.It was also involved in the filming of the Richard Curtis movie, The Boat That Rocked about those pirate radio days.The LV18 is now operated by a charitable trust and is coming to Ipswich for six weeks, during which … [Read more...] about Where and when can I see the LV18 Lightship on the river today?
Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Jaclyn Reiss Globe Staff August 27, 2018 President Trump made headlines on Monday for issuing a White House statement on John McCain’s death, and for announcing a tentative new trade agreement with Mexico. But before all that, he tried to use a speaker phone on live TV. And it did not go well. After greeting the press and sitting down in the Oval Office Monday morning, Trump made the announcement that a new trade deal with Mexico would replace NAFTA, settling in before his office landline and touting the fact that Mexican President Enrique Peña Nieto was on the other line. Advertisement That’s when things took a turn for the worse. Get This Week in Politics in your inbox: A weekly recap of the top political stories from The Globe, sent right to your email. Thank you for signing up! Sign up for more newsletters here “I believe the … [Read more...] about Trump tried to use a speaker phone this morning. It did not go well