[IPAC-List] New statement on p-values and statistical significance
jwiesen at appliedpersonnelresearch.com
Mon Mar 7 11:07:35 EST 2016
See explanation quoted below.
Joel P. Wiesen, Ph.D., Director
Applied Personnel Research
62 Candlewood Road
Scarsdale, NY 10583-6040
The Americal Statistical Association just sent out this email:
"Today, the American Statistical Association Board of Directors issued a
statement on p-values and statistical significance. We intend the
statement, developed over many months in consultation with a large panel
of experts, to draw renewed and vigorous attention to changing research
practices that have contributed to a reproducibility crisis in science.
"Widespread use of 'statistical significance' (generally interpreted as
'p < 0.05') as a license for making a claim of a scientific finding (or
implied truth) leads to considerable distortion of the scientific
process," says the ASA statement (in part). By putting the authority of
the world's largest community of statisticians behind such a statement,
we seek to begin a broad-based discussion of how to more effectively and
appropriately use statistical methods as part of the scientific
In short, we envision a new era, in which the broad scientific community
recognizes what statisticians have been advocating for many years. In
this "post p < .05 era," the full power of statistical argumentation in
all its nuance will be brought to bear to advance science, rather than
making decisions simply by reducing complex models and methods to a
single number and its relationship to an arbitrary threshold. This new
era would be marked by radical change to how editorial decisions are
made regarding what is publishable, removing the temptation to
inappropriately hunt for statistical significance as a justification for
publication. In such an era, every aspect of the investigative process
would have its appropriate weight in the ultimate decision about the
value of a research contribution.
Is such an era beyond reach? We think not, but we need your help in
making sure this opportunity is not lost.
The statement is available freely online to all at The American
Statistician Latest Articles website. You'll find an introduction that
describes the reasons for developing the statement and the process by
which it was developed. You'll also find a rich set of discussion papers
commenting on various aspects of the statement and related matters.
This is the first time the ASA has spoken so publicly about a
fundamental part of statistical theory and practice. We urge you to
share this statement with appropriate colleagues and spread the word via
social media. We also urge you to share your comments about the
statement with the ASA Community via ASA Connect. Of course, you are
more than welcome to email your comments directly to us at ron at amstat.org.
On behalf of the ASA Board of Directors, thank you!
American Statistical Association
American Statistical Association"
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