featured

Confessional science**

In the beginning of this month, a blog hosted by the Frankfurter Allgemeine Zeitung* reported about a scientific april fool hoax: On the pre-publishing platform arXiv.org, the author Ali Frolop published what was called “A Farewell to Falsifiability“, where one of the main criteria for scientific theories is questioned. The publication date and the author name (“Ali Frolop” = “April Fool”) make clear that this is actually a joke. However, having read that quite amusing text, it appeared to me more than a seriously meant satire, than just a cheap fooling joke.

Astrology is falsifiable, and there is nothing magic about this demarcation criteria.

The concept of Falsifiability is, in my opinion, on of the most important aspects that separates science from religion. In brief, it means that a theory must allow a prove that can contradict it. Is the sun always going down every day? (Living in Iceland with the summer coming closer, I would argue about that.) The Frolop paper gives also a good overview about other criteria for scientific theories, of course putting them into question: repeatability, simplicity and a testable correctness.

So what is going on in science? The trigger for this ongoing discussion is the string theory and the resulting multiverse theory. While the string theory can be used to explain observations, it can neither be falsified, nor predict observations, which are major disadvantages for a good theory. The same is true for universes other than ours, which also are not observable yet and allow any explanation to describe a maybe not-yet-known reality.

I agree with George Ellis and Joe Silk, who rise serious concerns about the reputation of science, when the criteria for theories are weakened. For example, the theory that there is a god, is also not falsifiable, nor is it sufficient to make predictions. Which is exactly is the purpose of religion. One danger that arises from mixing these aspects of science and religion is already there: Very often, defenders of a creationist god refer to the evolutional theory as just a theory. This is absolutely correct, since evolution is testable, repeatable and simple. The hypothesis that a concious super-powerful being willingly created and altered life, is neither of them. In so far, the Frolop paper might be less a hoax than a serious concern.

This battle for the heart and soul of physics is opening up at a time when scientific results – in topics from climate change to the theory of evolution – are being questioned by some politicians and religious fundamentalists.


* I have to excuse myself for referring so frequently to the german media. I also follow international news, but my native language is closer to me.

** My acknowlegdment goes to Philipp Scharf, who showed me the article in the Planckton blog.

Advertisements

A publication bias workshop

Two weeks ago, the National Centre for the Replacement Refinement & Reduction of Animals in Research (NC3Rs) was hosting a workshop about publication bias. In that workshop, an effort was taken to bring together “funders, journals, and scientists from academia and industry to discuss the impact of publication bias in animal research”.

By this event, three very good blog articles were written from cogsci.nl , F1000 Research and one from BioMed Central. Also, a Twitter discussion was ongoing, for which I made a Storify (please feel free to give me a note if I missed something).
Judging from the distance, this workshop seemed to have had a good impact on raising the awareness about biased publication and the consequences. Also, some solutions were discussed, like prospective registration of clinical trials to journals, and new ways for publishing. To me, prospective registration might be an interesting solution, also for other disciplines. This is what every day happens when a researcher applies for funding. However, in that case, the scientist is responsible to provide all his results to the funder, but not to a journal. I agree that this idea might be complicated to manage, but I really think it is worth the effort.

Considering new ways of publishing, PLOS One seems to be a step ahead by launching a new collection focusing on negative results. As promising as this might sound in the first moment, the collection includes papers from 2008 til 2014, being published as a new collection two weeks ago, at the 25th February 2015. This still reminds me a bit of all the negative journals that are only sporadically published. Nonetheless, I think that the awareness about that issue is rising.

Ben Goldacre’s talk about publication bias and its consequences in medicine

In this very interesting talk on TED , Ben Goldacre explains the consequences of publication bias in medical studies.

In fact, there have been so many studies conducted on publication bias now, over a hundred, that they’ve been collected in a systematic review, published in 2010, that took every single study on publication bias that they could find. Publication bias affects every field of medicine. About half of all trials, on average, go missing in action, and we know that positive findings are around twice as likely to be published as negative findings.

If you (like me) prefer to read instead of listening, you can find the transcript here.