P-values: Scientists slam proposal to raise threshold for statistically significant findings
|September 27, 2017||Posted by News under Peer review|
From Dalmeet Singh Chawla at Nature:
Researchers are at odds over when to dub a discovery ‘significant’. In July, 72 researchers took aim at the P value, calling for a lower threshold for the popular but much-maligned statistic. In a response published on 18 September1, a group of 88 researchers have responded, saying that a better solution would be to make academics justify their use of specific P values, rather than adopt another arbitrary threshold.
P values have been used as measures of significance for decades, but academics have become increasingly aware of their shortcomings and the potential for abuse. In 2015, one psychology journal banned P values entirely.More.
The P-value turns on the question of whether there is any relationship between the phenomena being measured. A smaller number is better. The fact that reforms of the system are controversial suggests that, where statistics are concerned, in matters of doubt: Doubt.
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If even scientists can’t easily explain p-values… ?
Nature: Banning P values not enough to rid science of shoddy statistics