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De Omnibus Dubitandum - Lux Veritas

Sunday, July 24, 2016

Let’s Talk About The Bad Science Being Funded

Posted on by admin

Spectacular failures to replicate key scientific findings have been documented of late, particularly in biology, psychology and medicine.   A report on the issue, published in Nature this May, found that about 90% of some 1,576 researchers surveyed now believe there is a reproducibility crisis in science.

While this rightly tarnishes the public belief in science, it also has serious consequences for governments and philanthropic agencies that fund research, as well as the pharmaceutical and biotechnology sectors. It means they could be wasting billions of dollars on research each year.
One contributing factor is easily identified. It is the high rate of so-called false discoveries in the literature. They are false-positive findings and lead to the erroneous perception that a definitive scientific discovery has been made.

This high rate occurs because the studies that are published often have low statistical power to identify a genuine discovery when it is there, and the effects being sought are often small.
Further, dubious scientific practices boost the chance of finding a statistically significant result, usually at a probability of less than one in 20. In fact, our probability threshold for acceptance of a discovery should be more stringent, just as it is for discoveries of new particles in physics.
The English mathematician and the father of computing Charles Babbage noted the problem in his 1830 book Reflections on the Decline of Science in England, and on Some of Its Causes. He formally split these practices into “hoaxing, forging, trimming and cooking”.

‘Trimming and cooking’ the data today.....
Publish or perish .......
Good science suffers .....

We hold an idealized view that science is rarely fallible, particularly biology and medicine. Yet many fields are filled with publications of low-powered studies with perhaps the majority being wrong........To Read More....

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