A highly cited paper by a well-known scientist at the Massachusetts Institute of Technology who studies longevity could have aged better: The ten-year-old paper has earned its second correction.
After reading too many papers that either are not reproducible or contain statistical errors (or both), the American Statistical Association (ASA) has been roused to action. Today the group released six principles for the use and interpretation of p values. P-values are used to search for differences between groups or treatments, to evaluate relationships between variables of interest, and for many other purposes. But the ASA says they are widely misused. Here are the six principles from the ASA statement:Continue reading We’re using a common statistical test all wrong. Statisticians want to fix that.
Approximately six out of 10 economics studies published in the field’s most reputable journals —American Economic Review and the Quarterly Journal of Economics — are replicable, according to a study published today in Science.
The authors repeated the results of 18 papers published between 2011 and 2014 and found 11 — approximately 61% — lived up to their claims. But the study found the replicated effect to be on average only 66% of that reported in the earlier studies, which suggests that authors of the original papers may have exaggerated the trends they reported.
Plant scientist Jorge Vivanco has earned his seventh retraction, after an investigation found data from soil samples were “intentionally fabricated by a third party.”
Vivanco and his former postdoc Harsh Bais made a name for themselves by discovering the secret behind a nasty invasive plant: It secretes a harmful form of catechin, which kills everything around it, suggesting it could serve as a new herbicide. The findings earned the researchers a story in the New York Times.
In the newly retracted paper, published in 2005, first author Laura Perry — then a postdoc at Colorado State University — further explored the role of the plant-killer, working with Vivanco as the last author. However, when a team working in the building next door had trouble finding catechin in their samples, Perry took another look, and concluded that her samples had been tampered with.
A paper about the biomechanics of human hands published last month in PLOS ONE is raising some questions on Twitter, after readers stumbled upon some curious language in the abstract:
The explicit functional link indicates that the biomechanical characteristic of tendinous connective architecture between muscles and articulations is the proper design by the Creator to perform a multitude of daily tasks in a comfortable way.
Yeah, that’s right — “the Creator.” You don’t see such language all that often in academic papers.
Sonia Melo, the recipient of an early career award from the European Molecular Biology Organization (EMBO) who fell under investigation after one of her papers was retracted, has now lost the grant.
Authors are retracting a 2014 paper about how liquid-crystalline materials self-organize in low temperature conditions after realizing they had measured the temperatures incorrectly.
Totalitarianism and Democracyhas removed a paper claiming that German Shepherds belonging to guards at the Berlin Wall descended from dogs used at concentration camps, after learning that the paper was a work of satire, The Guardian reports.
The paper, and its author, are the creation of the anonymous group “Christiane Schulte and friends.”
A paper about the role of specific proteins in the separation of newly replicated chromosomes is being retracted from the Chinese Medical Journal, after editors found out that the entire article was plagiarized.