A bot crawled thousands of studies looking for simple math errors. The results are concerning.

Brian Resnick:

But Michèle Nuijten, a PhD student at Tilburg University in the Netherlands who co-created Statcheck, has her sights on fixing a much smaller but surprisingly impactful problem in science: rounding errors.

“When starting this project, I wouldn’t say [this was a big problem],” Nuijten tells me. “We’re detecting when people are making rounding errors, who cares?”

But she and some colleagues in the Netherlands were curious enough to check. They built a computer program that could quickly scan published psychological papers and check the math on the statistics. They called their program “Statcheck” and ran it on 30,717 papers.

Related: Math Forum.