Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Friday, March 22, 2013

Good Research - And Marshmallows!

Okay, so sometimes the government funds research that actually is both interesting and not politically biased into nonsensicality. Here's one about Marshmallows!

No, really, this is good stuff. There's an old psychology test for children where you ask them if they want one marshmallow or two. (Two, always, duh!)

Then you tell them that you'll leave one marshmallow in the room with them, and if they wait to eat it until you get back, then you'll give them the second one. Some kids wait, some don't. The result - the kids that wait are the ones who are good at delaying gratification. The ones that don't, maybe have bad impulse control, because it's obvious that waiting for two is better than just getting one.

Sounds reasonable, right? Maybe even self-evident?

Well, there's a new study that points out something else that should have been obvious.

The kids aren't told how long they'll have to wait. The researcher said "a few minutes" or "a little while". Now, how often have you heard a parent use that phrase for something that you knew couldn't be done in less than an hour? I was always as specific as possible with my toddler, but almost every other parent I know uses fuzzy language like that for anything from literally a few minutes, to literally days.

So, in a very real sense, the children have no idea if the researcher is ever going to come back and give the children that second marshmallow. The guy may be gone for days. Maybe their parents will come to get them before he gets back.

The researchers went on to study related issues in adults.

“Our intuition is that when we are waiting for something, the longer we wait the closer and closer we get to that thing, which is what we see when we ask people about familiar things, like how long a movie will last,” Kable says. “But what we’ve found is that, if you don’t know anything about when the outcome will occur, the longer you wait the more you think you're getting farther and farther away from that outcome.”
Good stuff, well worth funding more of. We can wait for the results.

Friday, January 22, 2010

Nature Admits the Holes...

An interesting pair of articles in Nature.

To me, there are some basic things that any scientist has to do to maintain trust in his conclusions.

  • Tell the truth.
  • Do not alter the data.
  • When you alter the data or "splice together" different data to make your data match the conclusions, mark the change prominently. Doing otherwise is known as "fraud".
  • Do not disparage or attempt to marginalize scientists who do not agree with your conclusions.
  • Do not mischaracterize the views of scientist who do not agree with your conclusions. Like, for instance, calling them a
    small coterie of individuals who deny humanity's influence on climate.

  • Do not attempt to prevent the publication of studies that disagree with you. If their study is wrong, scientists will demonstrate what mistakes were made and how. If their study is right, then preventing its publication is a crime against science, and probably a legal tort as well. Either way, the publication of varying viewpoints leads to advancement of truth and science.
  • Be honest about your conflicts of interest. Getting paid for being alarmist is just as seedy as getting paid for ignoring facts the other way.
  • When the data show you're wrong, admit it and shut up until you have thoroughly reevaluated your prior conclusions. And when you come back, have a different message.
  • When you are discussing science, leave out such irrelevant data such as your opinion about how some scientists may "feel" about having to do good science.
    McIntyre has doggedly attacked the proxy records, particularly the statistics used to analyse tree-ring data.
    Many scientists are tired of the criticisms [emphasis mine], and the IPCC concluded that it is "likely" that the second half of the twentieth century was the warmest 50-year period in the Northern Hemisphere during the past 1,300 years. But legitimate questions remain about paleoclimate proxies, according to the IPCC.

    I'm sure the intelligentsia and the Catholic Church in the 1600s were tired of criticisms of their terracentric world-view. That says nothing about the relative merits of the Copernican system, vis-a-vis the Ptolemaic system.


  • A magazine called "Nature" can be presumed to have a biased viewpoint, and that's fine. Bias has its place. But science as a whole has to be the sum of all the ways of looking at things. True science is based upon parallax.

    Biased censorship of a scientific viewpoint is just plain evil, probably illegal, and should lead to both civil and criminal penalties, especially if it forces honest scientists out of the field of climate research because they are afraid of being marginalized for speaking truth.


    hat tip, James Taranto of Opinion Journal Online.