Lemus, Stapel each rack up another retraction

The retraction counts keep mounting for two Retraction Watch frequent flyers.

First, Diederik Stapel’s 26th retraction, according to our count. Psychologist Stapel admitted to making up data in dozens of studies, and is also facing a criminal inquiry for misuse of funds.

Here’s the notice: Continue reading Lemus, Stapel each rack up another retraction

Jumbled analysis leads to retraction of cancer study — but also another paper

The authors of a study on cancer incidence and survival in the Dutch migrant community have retracted it after realizing they’d made some errors that significantly affected the results.

But in what seems like an appropriate reward for coming forward, the newly analyzed data, with additional information, will be part of a forthcoming paper in another journal by the same authors.

The original retrospective study came out in May 2011 in the European Journal of Cancer Prevention and found that risk and survival of breast and stomach cancers differed depending on the person’s mother country. The problem was that the study jumbled up many of the participants’ homelands during the analysis.

The authors issued the following retraction: Continue reading Jumbled analysis leads to retraction of cancer study — but also another paper

Final report on cardiology researcher Poldermans confirms claims of misconduct

Erasmus Medical Center in the Netherlands has released the final report on Don Poldermans, finding that the institution’s once-star cardiology researcher committed misconduct.

As Larry Husten of CardioBrief reports, Erasmus MC’s investigation included that Poldermans — perhaps best known for his work on beta-blockers — has admitted to acts of misconduct but not to fraud.

That’s not merely a distinction without a difference. Continue reading Final report on cardiology researcher Poldermans confirms claims of misconduct

We missed one: Make that two retractions for Dirk Smeesters

Earlier today, we reported on what we thought was the first retraction to appear for Dirk Smeesters, who we noted was “the former Erasmus University social psychology professor investigated for serious irregularities in his work.” It turns out, however, as a Retraction Watch tipster told us, that another retraction had already been published.

The notice appeared in the August 2012 issue of the Journal of Consumer Research: Continue reading We missed one: Make that two retractions for Dirk Smeesters

Retraction appears for paper by social psychologist Dirk Smeesters

A paper by Dirk Smeesters — the former Erasmus University social psychology professor investigated for serious irregularities in his work — has been retracted.

The study, “Visual perspective influences the use of metacognitive information in temporal comparisons,” appeared in the Journal of Personality and Social Psychology earlier this year. Here’s the notice, which doesn’t quite say “fraud”: Continue reading Retraction appears for paper by social psychologist Dirk Smeesters

A fistful of Stapels: Psych journal retracts five more from Dutch researcher, upping total to 25

Diederik Stapel’s CV continues to crumble, with five more retractions for the disgraced Dutch social scientist who admitted to fabricating data in his studies.

The latest articles to fall appeared in the Personality and Social Psychology Bulletin, a Sage title, bringing Stapel’s total to 25 that we’re aware of so far: Continue reading A fistful of Stapels: Psych journal retracts five more from Dutch researcher, upping total to 25

And then there were 20: Diederik Stapel retraction count keeps growing

Although he’s in no danger of breaking the current record of 172 likely retractions, Diederik Stapel now has 20 to his, um, credit.

The September 2012 issue of the Journal of Personality and Social Psychology features these seven: Continue reading And then there were 20: Diederik Stapel retraction count keeps growing

We’re up to 13: Retractions keep coming for Diederik Stapel

The retraction count is up to 13 for Dutch psychology fraudster Diederik Stapel, with four more in the publications the Journal of Consumer Research, Motivation & Emotion, Psychology & Marketing, and Social Cognition.

Here are the notices: Continue reading We’re up to 13: Retractions keep coming for Diederik Stapel

Withdraw that emotion: Psych journal retracts two Stapel papers on mood

Two more papers from Dutch fraudster Diederik Stapel have been retracted. Both appeared in the journal Psychological Science in 2008, with the same, evidently unwitting co-author, Kirsten Ruys, of Tilburg University.

Here is the notice: Continue reading Withdraw that emotion: Psych journal retracts two Stapel papers on mood

Following investigation, Erasmus social psychology professor retracts two studies, resigns

Dirk Smeesters

The social psychology community, already rocked last year by the Diederik Stapel scandal, now has another set of allegations to dissect. Dirk Smeesters, a professor of consumer behavior and society at the Rotterdam School of Management, part of Erasmus University, has resigned amid serious questions about his work.

According to an Erasmus press release, a scientific integrity committee found that the results in two of Smeesters’ papers were statistically highly unlikely. Smeesters could not produce the raw data behind the findings, and told the committee that he cherry-picked the data to produce a statistically significant result. Those two papers are being retracted, and the university accepted Smeesters’ resignation on June 21.

The release also takes pains to say that the university has no reason to doubt the work of his co-authors. You can read the complete report in Dutch, with Smeesters’ co-authors’ names blacked out, in an NRC Handelsblad story.

Erasmus tells Retraction Watch that these are the two papers being retracted: Continue reading Following investigation, Erasmus social psychology professor retracts two studies, resigns