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Australasian Human Research Ethics Consultancy Services Pty Ltd (AHRECS)

Meta-analysis study indicates we publish more positive results – ARS Technica (John Timmer | December 2019)0

Posted by Admin in on January 13, 2020
 

Meta-analyses will only produce more reliable results if the studies are good.

While science as a whole has produced remarkably reliable answers to a lot of questions, it does so despite the fact that any individual study may not be reliable. Issues like small errors on the part of researchers, unidentified problems with materials or equipment, or the tendency to publish positive answers can alter the results of a single paper. But collectively, through multiple studies, science as a whole inches towards an understanding of the underlying reality.

Similar findings have been found before, but it’s important to rearticulate the value of negative results to science and practice.  This speaks to poor research culture and training. University education, and even high and primary school, do not acknowledge that failure is part of discovery. The rewards for ‘success’ are high and it is very tempting for students that can lead to research misconduct.

A meta-analysis is a way to formalize that process. It takes the results of multiple studies and combines them, increasing the statistical power of the analysis. This may cause exciting results seen in a few small studies to vanish into statistical noise, or it can tease out a weak effect that’s completely lost in more limited studies.
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But a meta-analysis only works its magic if the underlying data is solid. And a new study that looks at multiple meta-analyses (a meta-meta-analysis?) suggests that one of those factors—our tendency to publish results that support hypotheses—is making the underlying data less solid than we like.

Publication bias

It’s possible for publication bias to be a form of research misconduct. If a researcher is convinced of their hypothesis, they might actively avoid publishing any results that would undercut their own ideas. But there’s plenty of other ways for publication bias to set in. Researchers who find a weak effect might hold off on publishing in the hope that further research would be more convincing. Journals also have a tendency to favor publishing positive results—one where a hypothesis is confirmed—and avoid publishing studies that don’t see any effect at all. Researchers, being aware of this, might adjust the publications they submit accordingly.

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Russian journals retract more than 800 papers after ‘bombshell’ investigation – Science (Dalmeet Singh Chawla | January 2020)0

Posted by Admin in on January 11, 2020
 

Academic journals in Russia are retracting more than 800 papers following a probe into unethical publication practices by a commission appointed by the Russian Academy of Sciences (RAS). The moves come in the wake of several other queries suggesting the vast Russian scientific literature is riddled with plagiarism, self-plagiarism, and so-called gift authorship, in which academics become a co-author without having contributed any work.

The RAS commission’s preliminary report documenting the problems and journals’ responses to them is “a bombshell,” says Gerson Sher, a former staffer at the U.S. National Science Foundation and the author of a recent book on U.S.-Russia science cooperation. The report, released yesterday, “will reinforce the suspicions and fears of many—that their country is not going down the right path in science and that it’s damaging its own reputation,” says Sher, who applauds RAS for commissioning the investigation.
Russia’s roughly 6000 academic journals, the vast majority published in Russian, are popular among the country’s academics. A 2019 study found that Russian authors publish far more in domestic journals than, for instance, their counterparts in Poland, Germany, or Indonesia. But standards are often low. In March 2018, for instance, Dissernet, a network aimed at cleaning up the Russian literature, identified more than 4000 cases of plagiarism and questionable authorship among 150,000 papers in about 1500 journals.
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(Queensland, Australia) Ex-judge to investigate controversial marine research – Times Higher Education (John Ross | January 2020)0

Posted by Admin in on January 11, 2020
 

An Australian university has launched an investigation into the research record of a discredited scientist it educated, as findings by academics who supervised her doctoral training are challenged.

James Cook University said it has appointed an external panel to look for evidence of misconduct in the research conducted by marine biologist Oona Lönnstedt between 2010 and 2014, when she was undertaking PhD studies at the Queensland institution.

The university said the panel’s as yet unidentified members include “eminent academics with expertise in field work, marine science and ethics” and a former federal court judge.

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(Queensland, Australia) Analysis challenges slew of studies claiming ocean acidification alters fish behavior – Scienced0

Posted by Admin in on January 11, 2020
 

Over the past decade, marine scientists published a series of studies warning that humanity’s burgeoning carbon dioxide (CO2) emissions could cause yet another devastating problem. They reported that seawater acidified by rising CO2—already known to threaten organisms with carbonate shells and skeletons, such as corals—could also cause profound, alarming changes in the behavior of fish on tropical reefs. The studies, some of which made headlines, found that acidification can disorient fish, make them hyperactive or bolder, alter their vision, and lead them to become attracted to, rather than repelled by, the smell of predators. Such changes, researchers noted, could cause populations to plummet.

But in a Nature paper published today, researchers from Australia, Canada, Norway, and Sweden challenge a number of those findings. In a major, 3-year effort that studied six fish species, they could not replicate three widely reported behavioral effects of ocean acidification. The replication team notes that many of the original studies came from the same relatively small group of researchers and involved small sample sizes. That and other “methodological or analytical weaknesses” may have led the original studies astray, they argue.

“It’s an exceptionally thorough replication effort,” says Tim Parker, a biologist and an advocate for replication studies at Whitman College in Walla Walla, Washington. Marine scientist Andrew Esbaugh of the University of Texas, Austin, agrees that it’s “excellent, excellent work.”

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