
Markus Englund, a software developer and sleuth based in the Netherlands, first hit paydirt with invasive plant species in China. After having scanned 12 other published scientific datasets with his novel detection software with no results, he came across one showing something suspicious: rows and rows of measurements of plant roots repeated across entirely different species.
“I was really excited,” he said in a recent call with Retraction Watch. “I couldn’t think of any innocent explanation for why that would be the case.”
Englund had built a tool dedicated to “purging” fabricated data by identifying “impossible” data in spreadsheets available on open repositories, according to Science Detective, his site about the initiative. From his initial review, he has found 18 datasets containing duplicated values that are possibly serious enough to need correcting — including one from an influential paper on Parkinson’s disease, as The Transmitter recently reported. (Retraction Watch’s cofounder Ivan Oransky is that publication’s editor-in-chief.)
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