Meet the researcher aiming to halt use of ‘fundamentally flawed’ database linking IQ and nationality

Rebecca Sear

Rebecca Sear is on a mission to convince publishers to retract articles that use a database that purports to rank countries based on intelligence.

To maintain the integrity of scientific literature, the professor of psychology at Brunel University of London and her colleagues are writing to journals that are publishing papers that rely on the so-called National IQ database, which aims to rank countries based on intelligence. It has drawn criticism for the way the data were collected. Sear’s efforts have so far led to two retractions.

“There is absolutely no scientific merit whatsoever in the National IQ database,” Sear told Retraction Watch. “That means that any conclusions drawn from the database will be faulty and worthless.”

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Exclusive: Reviewer recommended against publishing paper on DNA in COVID vaccines

Rolf Marschalek was on vacation when he saw a new paper had been published in the journal Autoimmunity. Marschalek, a biochemist at Goethe University Frankfurt in Germany, was “very upset,” he told Retraction Watch – because he’d peer-reviewed the manuscript and had recommended against publication. 

The authors of the paper claimed to find DNA in mRNA-based COVID-19 vaccines above regulators’ suggested amounts. The article appeared online September 6, and within weeks the publisher began an investigation into concerns about its content, as we reported previously.

In Marschalek’s initial review, which he provided to us, he detailed how Qubit fluorometry, one of the methods the authors used to measure the amount of DNA in the vaccine vials, was “not suited” for use when samples contain much higher amounts of RNA than DNA, as is the case with mRNA-based COVID-19 vaccines. He cited a paper he and colleagues had written about methods of quantifying amounts of RNA and DNA in mRNA vaccine vials, including Qubit. 

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COVID-19 paper by scientists at Harvard, Duke gets expression of concern for ‘unreliable’ data

A Science journal has issued an expression of concern over questions about the data in a paper reporting the discovery of an antibody that neutralized all COVID-19 variants in mice.

The article appeared in Science Immunology in August 2022 and has been cited 36 times, according to Clarivate’s Web of Science. The study lists 30 coauthors from Boston Children’s Hospital and Duke University. An article by Boston Children’s published at the time said the findings could “contribute to new vaccine strategies.” 

According to the expression of concern, published November 21, the authors informed the journal of “potential data reliability concerns” with two of the figures. The journal is in the process of determining an “appropriate course of action,” the notice continues. 

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Springer Nature flags paper with fabricated reference to article (not) written by our cofounder

Update, Nov. 24, 2025, 5:48 p.m. UTC: This story was updated to add comment from Mohammad Abdollahi, the editor-in-chief of the journal and last author of the paper.


Tips we get about papers and books citing fake references have skyrocketed this year, tracking closely with the rise of ChatGPT and other generative large language models. One in particular hit close to home: A paper containing a reference to an article by our cofounder Ivan Oransky that he did not write.

The paper with the nonexistent reference, published November 13 in DARU Journal of Pharmaceutical Sciences, criticizes platforms for post-publication peer review — and PubPeer specifically — as being vulnerable to “misuse” and “hyper-skepticism.” Five of the paper’s 17 references do not appear to exist, three others have incorrect DOIs or links, and one has been retracted. 

One of the fabricated references credits our cofounder Ivan Oransky with a nonexistent article, “A new kind of watchdog is shaking up research,” purportedly published in Nature in 2019. 

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Botanists plant a stake in oral cancer research with case report, now under investigation

Elsevier is investigating a case report of a person with aggressive cancer, written by three plant researchers working far afield of their specialty. 

The three authors of the study, published June 2024 in Oral Oncology Reports, purport to diagnose a 63-year-old man with a rare, aggressive form of oral cancer. The journal is a companion title to Elsevier’s Oral Oncology according to the homepage, but is not indexed in Clarivate’s Web of Science. 

Corresponding author Velmani Sankaravel told Retraction Watch he and his colleagues found the case report from an “online open-access source” and then used it “to support our research on plant-based diagnostics for oral cancer.” However, the paper lists CT scans, biopsies, and other routine diagnostic tests and makes no mention of plant-based diagnostic tools.

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Bug in Springer Nature metadata may be causing ‘significant, systemic’ citation inflation

Millions of researchers could be affected by a “dramatic distortion of citation counts” likely caused by flaws in how the academic publishing giant Springer Nature handles article metadata, according to a new preprint.

The bug means a large number of citations are automatically attributed to the first paper in a given journal volume, instead of to whichever paper in that volume they were intended for. The issue appears to affect many of the publisher’s online-only titles, such as Nature Communications, Scientific Reports and several BMC journals.

“It seems that millions of scientists lost a few citations, while tens of thousands, the authors of Article 1s, gained all these, leading to insane citation counts,” Tamás Kriváchy of the Barcelona Institute of Science and Technology, in Spain, told us. His findings appeared earlier this month on arXiv.org. And those citation losses and gains are through no fault (or intention) of the authors themselves. In fact, one author we spoke with has tried, without success, to get mistaken citations removed from her paper. 

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Journal retracts ‘bizarre’ placebo effect paper

An Elsevier journal has retracted a study on the placebo effect coauthored by a researcher known for extreme claims that have failed to withstand scrutiny. The move comes after critics said the researchers misunderstood “what a ‘treatment effect’ is.” 

The study, published in the Journal of Clinical Epidemiology in December 2024, analyzed 30 clinical trials examining treatments for a total of five conditions. The authors concluded “the placebo-effect is the major driver of treatment effects in clinical trials that alone explains 69% of the variance.” It has been cited once, according to Clarivate’s Web of Science.

The last author of the study is Harald Walach, who may be familiar to readers of Retraction Watch. In one now-retracted paper, Walach and his coauthors claimed the COVID-19 vaccines killed two people for every three deaths they prevented. In a different, also retracted paper, Walach and colleagues claimed children’s masks trap carbon dioxide. (They later republished the article in a different journal.) 

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Exclusive: A misconduct ruling, a flawed investigation, and an attempted payoff

University of Melbourne

In April 2019, Daejung Kim, then a Ph.D. student at the University of Melbourne in Australia, found a draft manuscript on the desk of a postdoc in the same laboratory. The manuscript included the experimental results on metal alloys he had spent months collecting. Kim hadn’t been told about the paper, nor had anyone asked his permission to use the data. The findings were central to Kim’s Ph.D. thesis and publishing them would mean the data were no longer original. 

“I was shaking in the lab,” he recalled recently. “When I saw it, I couldn’t stop myself. I didn’t know what to do.” 

Kim took his concerns to his supervisor, Kenong Xia, a materials scientist and head of the lab, asking for his help to resolve the issue. He wanted to be credited as a coauthor on any papers using his results. He also emailed the postdoc, Ahmad Zafari, asking to see a draft of the paper. 

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Dozens of board members resign from big-data journal after mass staff firings

More than three-fifths of the editorial board of a biomedical sciences journal resigned after the publication’s operations moved from Hong Kong to Shenzhen, China, and the editors and software team were fired with 30 days’ notice. 

GigaScience is published in partnership between Oxford University Press and GigaScience Press, the publishing division of BGI, a genomics company based in Shenzhen, according to their website. 

On October 29, B.F. Francis Ouellette, a bioinformatics consultant, sent the resignation notice in an email addressed to Oxford University Press and the new editor-in-chief of the journal, Xun Xu. According to the email, which was signed by 30 of the journal’s 49 board members, those resigning became “increasingly concerned about the recent structural and editorial changes at GigaScience and how they may affect the journal’s long-standing commitment to publishing rigorously reviewed, reproducible research.”

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Former Australian science agency ecology researcher loses two papers

One of the retracted papers proposed an epigenetic clock to estimate the age of sea turtles.
Brocken Inaglory/Wikimedia Commons (CC BY-SA 3.0)

A molecular ecology researcher has lost two papers and received an expression of concern for a third after coauthors flagged data issues with the papers. 

All three papers appeared in Molecular Ecology Resources and describe the use of DNA methylation as an epigenetic clock to predict the age of different animals. The journal retracted two of the studies in July. The first, published in June 2021, estimated ages for three threatened fish species. The second appeared in April 2022 and proposes a clock for predicting the age of sea turtles. The articles have been cited 41 and 32 times, respectively, according to Clarivate’s Web of Science.

The lead author on those two studies was Benjamin Mayne, formerly a researcher at Australia’s national science agency, the Commonwealth Scientific and Industrial Research Organization (CSIRO), based in Canberra. 

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