Science Fraud


Diederik Stapel, a prominent Dutch social psychologist

Diederik Stapel, a prominent Dutch social psychologist, until the summer 2011

1 How one man got away with mass fraud by saying ’trust me, it’s science’

When news broke this year that Diederik Stapel, a prominent Dutch social psychologist, was faking his results on dozens of experiments, the fallout was swift, brutal and global.

Science and Nature, the world’s top chroniclers of science, were forced to retract papers that had received wide popular attention, including one that seemed to link messiness with racism, because “disordered contexts (such as litter or a broken-up sidewalk and an abandoned bicycle) indeed promote stereotyping and discrimination.”

As a result, some of Prof. Stapel’s junior colleagues lost their entire publication output; Tilburg University launched a criminal fraud case; Prof. Stapel himself returned his PhD and sought mental health care; and the entire field of social psychology — in which human behaviour is statistically analyzed — fell under a pall of suspicion.

One of the great unanswered questions about the Stapel affair, however, is how he got away with such blatant number-fudging, especially in a discipline that claims to be chock full of intellectual safe-guards, from peer review to replication by competitive colleagues. How can proper science go so wrong?

The answer, according to a growing number of statistical skeptics, is that without release of raw data and methodology, this kind of research amounts to little more than “‘trust me’ science,” in which intentional fraud and unintentional bias remain hidden behind the numbers. Only the illusion of significance remains.

Trust me, I'am a scientist!

Con: Persuade (someone) to believe something by lying to them

Diederik Alexander Stapel is een voormalig Tilburgs hoogleraar sociale psychologie, die bekend werd als wetenschapsfraudeur

Diederik Alexander Stapel is een voormalig Tilburgs hoogleraar sociale psychologie, die bekend werd als wetenschapsfraudeur

 Een passage uit een artikel in The New York Times:

Suspecting fraud, he consulted a retired professor to figure out what to do.
“Do you really believe that someone with [Stapel’s] status faked data?” the professor asked him.

“At that moment,” Vingerhoets told me, “I decided that I would not report it to the rector.”

If Stapel’s status served as a shield, his confidence fortified him further.
His presentations at conferences were slick and peppered with humor. He viewed himself as giving his audience what they craved: “structure, simplicity, a beautiful story.” Stapel glossed over experimental details, projecting the air of a thinker who has no patience for methods. The tone of his talks, he said, was “Let’s not talk about the plumbing, the nuts and bolts – that’s for plumbers, for statisticians.” If somebody asked a question – on the possible effect of changing a condition in the experiment, for example – he made things up on the spot. “I would often say, ‘Well, I have thought about this, we did another experiment which I haven’t reported here in which we tried that and it didn’t work.’ ”


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Wetenschapsfraude op basis van fictieve gegevens wordt plots na bijna 10 jaar ontmaskerd (oktober 2011). Stapel got his Ph.D. in 1997.

In 1991 studeerde hij cum laude af in de psychologie en in de communicatiewetenschap aan de Universiteit van Amsterdam, waar hij in 1997 promoveerde in de sociale psychologie. Daarna stelde de KNAW hem meteen aan als academieonderzoeker.
Vanaf 2000 was hij hoogleraar aan de Rijksuniversiteit Groningen en vanaf 2006 aan de Universiteit van Tilburg.

Diederik Stapel steekt jarenlang aan de keukentafel datasets in elkaar en tweakt de getallen om aan de vooropgestelde conclusie te komen.
Hij was zelfs niet op de locaties geweest waar de wetenschappelijk onderzoek zou plaats vinden!

Twee jonge studenten en een jonge professor merken wat er gaande is door de inconsistenties in de getallen.
De drie jonge klokkenluiders doen het nodige. Dit is de kern van de ontknoping.

Three categories of scientific misconduct: Fabrication, Falsification, Questionable research practices

Definition Fraud, cheating in research, or research misconduct, which is the official term, is often defined as fabrication, falsification and plagiarism.

Op de vroegere website van Diederik Stapel stond er op de pagina ‘ontsporing’ volgende treffende zin:
‘… het verkeerde pad kiest en zichzelf stukje bij beetje een rad voor ogen draait om uiteindelijk keihard te verongelukken’.

2 Fraud and plagiarism

It may be tempting to dress up in borrowed plumage (plagiarise/refrain from referring to one’s sources), cook data (falsify data) or simply invent (fabricate) data, and disregard the fact that this violates fundamental and internationally accepted rules for good research practice.

Scientific misconduct is defined as falsification, fabrication, plagiarism and other serious breaches of good research practice that have been committed wilfully or through gross negligence when planning, carrying out or reporting on research (italics added).

The Norwegian National Research Ethics Committees

Car Paint Job Surprise

31 mrt. 2011


Pedestrians are pranked into looking like they just ruined a car paint job! A presentation of the Just For Laughs Gags. The funny hidden camera pranks show for the whole family. Juste pour rire les gags, l’émission de caméra caché la plus comique de la télé!

Het artikel in de New York Times (volgende webpagina) geeft een mooi beeld,
het geeft op makkelijke wijze inzicht in de wetenschapsfraude door Diederik Stapel.