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One of the Netherlands' leading social psychologists made up or manipulated data in dozens of papers over nearly a decade, an investigating committee has concluded.
Diederik Stapel was suspended from his position at Tilburg University in the Netherlands in September after three junior researchers reported that they suspected scientific misconduct in his work. Soon after being confronted with the accusations, Stapel reportedly told university officials that some of his papers contained falsified data. The university launched an investigation, as did the University of Groningen and the University of Amsterdam, where Stapel had worked previously. The Tilburg commission today released an interim report (in Dutch), which includes preliminary results from all three investigations. The investigators found "several dozens of publications" in which fictitious data has been used. Fourteen of the 21 Ph.D. theses Stapel supervised are also tainted, the committee concluded.
Stapel issued a statement today in which he apologizes to his colleagues and says he "failed as a scientist" and is ashamed of his actions. He has cooperated to an extent by identifying papers with suspect data, according to university officials. The investigation by the three universities is ongoing and should ultimately investigate more than 150 papers that Stapel has published since 2004, including a paper earlier this year in Science on the influence of a messy environment on prejudice. "People are in shock," says Gerben van Kleef, a social psychologist at the University of Amsterdam, who did not work directly with Stapel. "Everybody wonders how this could have happened and at this proportion."
Read the whole story here.
Diederik Stapel was suspended from his position at Tilburg University in the Netherlands in September after three junior researchers reported that they suspected scientific misconduct in his work. Soon after being confronted with the accusations, Stapel reportedly told university officials that some of his papers contained falsified data. The university launched an investigation, as did the University of Groningen and the University of Amsterdam, where Stapel had worked previously. The Tilburg commission today released an interim report (in Dutch), which includes preliminary results from all three investigations. The investigators found "several dozens of publications" in which fictitious data has been used. Fourteen of the 21 Ph.D. theses Stapel supervised are also tainted, the committee concluded.
Stapel issued a statement today in which he apologizes to his colleagues and says he "failed as a scientist" and is ashamed of his actions. He has cooperated to an extent by identifying papers with suspect data, according to university officials. The investigation by the three universities is ongoing and should ultimately investigate more than 150 papers that Stapel has published since 2004, including a paper earlier this year in Science on the influence of a messy environment on prejudice. "People are in shock," says Gerben van Kleef, a social psychologist at the University of Amsterdam, who did not work directly with Stapel. "Everybody wonders how this could have happened and at this proportion."
Read the whole story here.
