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Ski accidents and random sampling
Last weekend NRC, a Dutch newspaper, published an article in bold face on page 3 with the heading Dutch wounded through skiing: a remarkable increase of 14 percent. Looking for explanations, the...
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Measuring the unconscious mind
One of the goals (and some would say the most important goal) of psychology is to study the contents of the human mind. Normally, getting to know the contents of the mind requires interrogating...
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Where on earth did the effect go?
A proper manner to uncover fraudulent-, flawed-, and chance findings is replication. Basically, a replication is nothing more than to copy-cat an earlier study, so exact as may be possible, only to...
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Can thinking of a professor really make you smarter?
Many negative consequences followed the discovery of the massive fraud by social psychologist Diederik Stapel in 2011, including damage to the reputation of science in general and psychology in...
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Connecting clinical decision- making and psychological research with...
Making decisions in psychological practice When we make decisions in the real world, we are faced with limitations to the information, cognitive resources, and time at our disposal. This is called...
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Why being wrong is better than being right (if you’re a model).
OK, I’ll admit it: I like models. I especially like models because they are predictable and simple. And I like my models to be wrong. This may sound counterintuitive, but when making predictions a...
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London 2012: Curse or Blessing?!
In the first two weeks of March 2016, three newspapers reported on 'the Curse of London': the strikingly high death rate among athletes who participated in the 2012 Olympic Summer Games in London. The...
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Waiting time
The columns of Prof. Ionica Smeets are always a joy to read. Last week, she wrote about the time we spend waiting when we go to the bathroom or the supermarket (Sir Edmund Volkskrant, August 27). She...
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Trust the polls, just don’t trust their sample
Sampling bias One of the most probable causes was that the samples the polls used were off: they missed a certain demographic and therefore underestimated Trump’s chances. In methodological terms, this...
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‘Justify your Alpha’: how 88 scientists wrote a Nature journal paper via...
Not So Blue Monday On 'Blue Monday' this year I received a rather encouraging e-mail: our recent paper has been accepted by Nature Human Behavior. We have written a response to the paper by Benjamin et...
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