Leiden Psychology Blog

rss

Tag: Methods

  • How do I know if it is fake or true news?

    How do I know if it is fake or true news?

    'I care about science and accurate information first as a citizen and secondly as a researcher. Why? Because as a researcher I know what is going on in my field and I have access to accurate knowledge in that field. But as a citizen, there are limits...
  • Alternative medicine and the placebo effect

    Alternative medicine and the placebo effect

    A lot of money is spent on alternative medicine, even though there is no scientific evidence that its benefits are anything more than a placebo effect. But if it makes patients feel better, is there actually anything wrong with these treatments?
  • Truly awesome data

    Truly awesome data

    Researchers perform studies to test their hypothesis. Yet, some hypotheses require data so special, that they are rarely tested. The Netherlands Study of Depression and Anxiety provides researchers in Leiden, Amsterdam, and Groningen with such special data
  • Where on earth did the effect go?

    Where on earth did the effect go?

    One replication is worth at least a thousand t-tests, indeed, but several replications (let’s say about twenty) and well-powered studies are worth at least a million t-tests.