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What does “reproducibility” mean? New paper seeks to standardize the lexicon

Science Translational MedicineWhat is the difference between “reproducible” and “replicable”? And how does each relate to results that are “generalizable” and “robust”?

Researchers are using these terms interchangeably, creating confusion over what exactly is needed to confirm a scientific result, argues a new paper published today in Science Translational Medicine.

Here’s how the US National Science Foundation (NSF) defines “reproducibility,” according to the authors: Continue reading What does “reproducibility” mean? New paper seeks to standardize the lexicon

Paper reports data from PET/CT scan, years before it arrived

MedicineAuthors have retracted a study just three months after publishing it, upon realizing they made “several critical errors.”

For one, the authors didn’t actually collect the data they claim to in the title of the paper, which reported on methods to screen patients for recurrence of lung cancer. The authors included data from positron emission tomography/computed tomography (PET/CT), collected from 2003 to 2007 — but their institution didn’t have a PET/CT scanner until 2009. Instead, the authors had mistakenly reported the results of PET scans alone, which may not find tumors as effectively as PET/CT.

Here’s the retraction notice in Medicine, which explains the nature of the error in more detail. (Note: One of the authors supplied some missing text, in brackets.)

Continue reading Paper reports data from PET/CT scan, years before it arrived

Epilepsy researcher gets retraction, correction after former colleague flags work

EpilipsiaEpilepsy researcher Toni Schneider has received a retraction and a correction in quick succession, after a former colleague raised red flags about the work. 

The retraction for Schneider, based at the University of Köln in Germany, is for “unintentional inclusion of erroneous data” due to limitations of the recording system used in the paper, according to the notice. 

Marco Weiergräber, a former colleague of Schneider’s, has claimed that the authors of the paper did not use the test properly. The journal editor, however, told us he believes the original analysis is an “honest mistake,” and there is “no evidence” to suggest that the authors intentionally published incorrect analyses.

Here’s the retraction notice, issued by the journal in March 2016: Continue reading Epilepsy researcher gets retraction, correction after former colleague flags work

Neuro journal pulls article for data theft, prompts misconduct probe

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Neuroscientists have retracted a research letter less than two months after it appeared, admitting they appeared to pass off others’ data as their own.

Two of the researchers are listed as affiliated with the University of California, San Francisco (UCSF), and the incident has led to a misconduct investigation at the institution, a UCSF spokesperson told us.

The article, “DNAJC6 variants in Parkinson’s disease and amyotrophic lateral sclerosis,” appeared in April. It was quickly followed by this notice, dated in May: Continue reading Neuro journal pulls article for data theft, prompts misconduct probe

Poll: Is duplication misconduct?

RW logoIf authors duplicate portions of their own work in multiple papers — such as descriptions of methods, a boilerplate background to their field, etc. — should that be considered misconduct?

Of course, to many journals, duplication — also known as “self-plagiarism” is a retractable offense. A recent letter to the U.S. Office of Research Integrity (ORI) from the Council on Governmental Relations asked the agency to consider it misconduct, and “include self-plagiarism in the definition of plagiarism.” More specifically, the letter — reported by the Report on Research Compliance — says to new ORI director Kathy Partin:

Continue reading Poll: Is duplication misconduct?

PLOS ONE paper plagiarized from 17 articles — yes, 17

PLOSOneA PLOS ONE paper about chronic pain plagiarized from multiple sources — 17, in fact.

According to the retraction notice released by the journal last week, the paper contains “extensive verbatim use of text from other sources.”

How did this make it past the editors? The journal published the paper in 2012 — before it began screening papers for plagiarism, according to a spokesperson.

Here’s the retraction notice for “The Effect of Social Stress on Chronic Pain Perception in Female and Male Mice:”

Continue reading PLOS ONE paper plagiarized from 17 articles — yes, 17

Two math papers are too similar, both retracted

Advances in Differential EquationsA mathematician has lost two publications that overlap substantially.

In this case, it’s easy to see how editors were duped (as it were). Both journals received the papers within a few months of each other, and then published them in quick succession; both have since been retracted. The papers share a first author, Jin Li, affiliated with Jiujiang University in China.

How similar are Li’s papers? See for yourself.

Here’s the abstract for “Landesman-Lazer type condition for second-order differential equations at resonance with impulsive effects,” received by Advances in Difference Equations in June 2014 and published in September 2014: Continue reading Two math papers are too similar, both retracted

Finnish universities must now use courts to revoke degrees

layout_set_logoA court in Finland has ruled that universities must go through the court system if they want to revoke a degree.

In a precedent-setting decision, a body dubbed “the court of last resort in administrative cases” in Finland ruled that universities must apply to them to revoke someone’s degree. The ruling, which occurred this month, took place after a former student filed an appeal after the University of Eastern Finland (UEF) cancelled his degree over charges of plagiarism and fraud.

Here is more from the publication Helsingin Sanomat (which we translated using One Hour Translation):  Continue reading Finnish universities must now use courts to revoke degrees

Weekend reads: Improper influence by NFL; dissertations for sale; how common is failure to reproduce?

booksThe week at Retraction Watch featured controversy over an economics paper, and a report of a researcher who faked more than 70 experiments. Here’s what was happening elsewhere: Continue reading Weekend reads: Improper influence by NFL; dissertations for sale; how common is failure to reproduce?

JACS corrects, removes author from previously flagged paper

JACSA paper at the center of a high-profile case of alleged misconduct in Hong Kong has earned a correction notice.

The correction replaces an expression of concern on the Journal of the American Chemical Society (JACS) paper, which followed allegations of data manipulation. It provides some un-cropped images, and removes a co-author from the paper. However, it does not appear to address previous allegations of misconduct, nor a recent ruling from an investigation at Hong Kong University (HKU), which found that some of the data were “invalid.”

Here is the correction notice for “Molecular Imaging of Peroxynitrite with HKGreen-4 in Live Cells and Tissues:”

Continue reading JACS corrects, removes author from previously flagged paper