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Posts Tagged ‘stats’
COVID-19/Coronavirus Real Time Updates With Credible Sources in US and Canada | 1Point3Acres
April 26, 2020Forecasting s-curves is hard – Constance Crozier
April 19, 2020The Two Settings of Kind and Wicked Learning Environments
April 17, 2020There’s a paper on this topic that introduced the idea of “kind and wicked learning environments”:
https://pdfs.semanticscholar.org/5c5d/33b858eaf38f6a14b3f042202f1f44e04326.pdf
…in wicked environments it is difficult to do inference based on data. One solution seems to be to break down the problem in such a way that you can observe sub-problems in a kind environment.
The Two Settings of Kind and Wicked Learning Environments
Robin M. Hogarth1, Tomás Lejarraga2, and Emre Soyer3
Abstract
QT:{{” Inference involves two settings: In the first, information is acquired (learning); in the second, it is applied (predictions or choices). Kind learning environments involve close matches between the informational elements in the two settings and are a necessary condition for accurate inferences. Wicked learning environments involve mismatches. This conceptual framework facilitates identifying sources of inferential errors and can be used, among other things, to suggest how to target corrective procedures. For example, structuring learning environments to be kind improves probabilistic judgments. Potentially, it could also enable economic agents to exhibit maximizing behavior.
“}}
Interpreting odds and odds ratios – The Stats Geek
November 18, 2018Big names in statistics want to shake up much-maligned P value
August 8, 2017Big names in #statistics want to shake up…#Pvalue
http://www.Nature.com/news/big-names-in-statistics-want-to-shake-up-much-maligned-p-value-1.22375 Stronger significance cutoffs (.005?) but danger of FNs
QT:{{”
“Lowering P-value thresholds may also exacerbate the “file-drawer problem”, in which studies with negative results are left unpublished, says Tom Johnstone, a cognitive neuroscientist at the University of Reading, UK. But Benjamin says all research should be published, regardless of P value.
…
Other scientific fields have already cracked down on P values — and in 2015, one psychology journal banned them. Particle physicists, who collect reams of data from atom-smashing experiments, have long demanded a P value below 0.0000003 (or 3 × 10−7) because of concerns that a lower threshold could lead to mistaken claims, notes Valen Johnson, a statistician at Texas A&M University in College Station and a co-lead author of the paper. More than a decade ago, geneticists took similar steps to establish a threshold of 5 × 10−8 for
genome-wide association studies, which look for differences between people with a disease and those without across hundreds of thousands of DNA-letter variants.”
“}}
Proportionality: A Valid Alternative to Correlation for Relative Data
June 12, 2017A Valid Alternative to #Correlation for Rel. Data
http://journals.PLoS.org/ploscompbiol/article?id=10.1371/journal.pcbi.1004075 Illustrates how r fails on simple expression expts HT @mason_lab
Nullius in verba: A crash course in understanding numbers | The Economist
February 18, 2017Nullius in verba: A crash course in understanding numbers | The Economist
about:
A Field Guide to Lies and Statistics. By Daniel Levitin. Dutton; 292 pages; $28. Viking; £14.99.
https://www.amazon.com/Field-Guide-Lies-Statistics-Neuroscientist/dp/0241239990/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=1487476465&sr=8-1
Similar to:
How statistics lost their power – and why we should fear what comes next | William Davies | Politics | Th e Guardian
January 30, 2017How stats lost their power via @alexvespi
https://www.theguardian.com/politics/2017/jan/19/crisis-of-statistics-big-data-democracy Death of #DataScience in a “post-truth” world; anecdotes v elitist numbers
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