Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘lacour’ Category

“Whoops.” Paper cites retracted gay canvassing paper — but blame me, says journal editor

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arch sex behavBy now, most Retraction Watch readers are likely familiar with the retraction in May of a much-ballyhooed study in Science on whether gay canvassers could persuade people to agree with same-sex marriage. It turns out that before that retraction appeared, a different study that cited the Science paper made its way online.

Kenneth Zucker, the editor of Archives of Sexual Behavior, which published the study online in February, 2015, decided he had some ‘splaining to do. The article has now been published as the lead paper in the current issue of the journal, which also includes a comment from Zucker. He explains what happened: Read the rest of this entry »

Written by Ivan Oransky

September 4th, 2015 at 11:30 am

Data “were destroyed due to privacy/confidentiality requirements,” says co-author of retracted gay canvassing study

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science coverAs promised, Michael LaCour, the co-author of the now-retracted Science paper on gay canvassing, has posted a detailed response to the allegations against him.

In the 23-page document — available here — LaCour claims to

introduce evidence uncovering discrepancies between the timeline of events presented in Broockman et al. (2015) and the actual timeline of events and disclosure.

He also says that the graduate students who critiqued his work failed to follow the correct sampling procedure and chose an incorrect variable in what LaCour calls “a curious and possibly intentional ‘error.'” He writes: Read the rest of this entry »

Written by Ivan Oransky

May 29th, 2015 at 9:54 pm

Science retracts troubled gay canvassing study against LaCour’s objections

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science coverFollowing revelations of data issues and other problems (which crashed our server last week), Science is retracting a paper claiming that short conversations could change people’s minds on same-sex marriage.

The co-author who admitted to faking the data “does not agree” to the retraction, according to Science. Here’s more from the note: Read the rest of this entry »

Written by Alison McCook

May 28th, 2015 at 2:31 pm

Author retracts study of changing minds on same-sex marriage after colleague admits data were faked

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science coverIn what can only be described as a remarkable and swift series of events, one of the authors of a much-ballyhooed Science paper claiming that short conversations could change people’s minds on same-sex marriage is retracting it following revelations that the data were faked by his co-author.

[3:45 p.m. Eastern, 5/28/15: Please see an update on this story; the study has been retracted.]

Donald Green, of Columbia, and Michael LaCour, a graduate student at UCLA, published the paper, “When contact changes minds: An experiment on transmission of support for gay equality,” in December 2014. The study received widespread media attention, including from This American LifeThe New York Times, The Wall Street JournalThe Washington Post,  The Los Angeles Times, Science FridayVox, and HuffingtonPost, as LaCour’s site notes.

David Broockman and Joshua Kalla, graduate students at University of California, Berkeley, were two of the people impressed with the work, so they planned an extension of it, as they explain in a timeline posted online yesterday: Read the rest of this entry »

Written by Ivan Oransky

May 20th, 2015 at 7:09 am