Open in app

Sign In

Write

Sign In

Richard D. Morey
Richard D. Morey

719 Followers

Home

About

Jan 2, 2021

The value of p

What we lose if we abandon p values — I spent a fair amount of time thinking and writing on both sides of the frequentist/Bayesian divide. In recent years, thanks to reading (and, importantly, re-reading) the persectives of Mayo, Cox, Spanos, Wasserman, I’ve become convinced of the importance of a frequentist perspective on statistical evidence, but I’ve not articulated…

Statistics

7 min read

The value of p
The value of p
Statistics

7 min read


Jun 12, 2020

Power and precision

Why the push for replacing “power” with “precision” is misguided — [Code for all the plots in this post is available in this gist.] One of the common claims of anti-significance-testing reformers is that power analysis is flawed, and that we should be planning for study “precision” instead. I think this is wrong for several reasons that I will outline here…

Statistics

19 min read

Power and precision
Power and precision
Statistics

19 min read


Apr 4, 2020

To you, on the occasion of your replication crisis

“I am very sorry, Pyrophilus…” — The seventeenth century was an exciting time in Europe. A new empirical philosophy — what we call science — was emerging. Oldenburg founded the Philosophical Transactions of the Royal Society, now the oldest scientific journal still being published, to communicate peoples’ observations and ideas. People like Newton, Halley, Hooke, Boyle…

4 min read

To you, on the occasion of your replication crisis
To you, on the occasion of your replication crisis

4 min read


Aug 3, 2019

New pre-print: Use of significance test logic by scientists in a novel reasoning task

How scientists successfully reason about sampling distributions — Rink Hoekstra (@rinkhoekstra) and I are pleased to release a new pre-print, “Use of significance test logic by scientists in a novel reasoning task”. We test the ability of a large, diverse group of researchers to reason from sampling distributions, a core aspect of significance logic. Although it is common…

Data Science

5 min read

New pre-print: Use of significance test logic by scientists in a novel reasoning task
New pre-print: Use of significance test logic by scientists in a novel reasoning task
Data Science

5 min read


Published in

Towards Data Science

·Jan 28, 2019

Why you shouldn’t say “this study is underpowered”

Ensuring our critiques of power are relevant, clear, and based on good statistics — On Twitter recently, I criticised the common practice (some might say “shorthand”) of claiming that an experiment or study is “underpowered”. This ended up being a popular tweet, which I wasn’t expecting (it is a rather arcane statistical point) but given its centrality to some of the recent issues in…

Data Science

8 min read

Why you shouldn’t say “this study is underpowered”
Why you shouldn’t say “this study is underpowered”
Data Science

8 min read


Dec 16, 2018

Use your statistical intuition to save Christmas!

A Christmas-themed statistical game and experiment — (The experiment is over, but you can see a version of it on github) It’s nearly Christmas, but Santa has a problem: his elves have stopped working! The elves have have divided into two gangs, the Jinglies and the Sparklies, each believing that their gang can make toys faster. Santa…

Christmas

2 min read

Use your statistical intuition to save Christmas!
Use your statistical intuition to save Christmas!
Christmas

2 min read


Oct 21, 2018

Severity and statistical evidence

Notes on Tour 1 of “Statistical Inference as Severe Testing” — Anyone who’s had any contact with statistical methods recently knows that there’s a battle being fought over the future of statistical methods. Actually, more than one; the big ones are significance testing vs confidence intervals and Bayes vs frequentism. The so-called “replication crisis” in the various sciences has provided an…

Statistics

4 min read

Notes on “Statistical Inference as Severe Testing” (Tour 1)
Notes on “Statistical Inference as Severe Testing” (Tour 1)
Statistics

4 min read


Jul 25, 2018

An Open Letter in Support of Markey and Elson

Scientists defend two researchers trying to clean up the scientific literature — [Update: the paper in question was officially retracted while this letter was being circulated; but OSU’s complaint is still outstanding. The good news is that both Markey and Elson’s Universities have declined to act on OSU’s complaint. To date, however, they have not made any public statement in support of…

Science

8 min read

Science

8 min read


Jan 1, 2018

Redefining statistical significance: the statistical arguments

Part two of a three part series — [Part one of this series is here] At the heart of the RSS paper are a number of statistical arguments. There are three, and I will address each of them in this (rather long) post. They are 1) two-sided p values around .05 are evidentially weak, 2) using a lower…

Data Science

22 min read

Redefining statistical significance: the statistical arguments
Redefining statistical significance: the statistical arguments
Data Science

22 min read


Nov 26, 2017

When the statistical tail wags the scientific dog

Should we “redefine” statistical significance? — [Part two of this series is here] Recently, a zillion-author manuscript came down the pipe suggesting that a change to the common practice of using p<.05 as a criterion for statistical significance. The authors include theoretical and applied statisticians and scientists, and the paper has clearly made an impression, both…

Science

4 min read

When the statistical tail wags the scientific dog
When the statistical tail wags the scientific dog
Science

4 min read

Richard D. Morey

Richard D. Morey

719 Followers

Statistical modeling and Bayesian inference, cognitive psychology, and sundry other things

Following
  • Ethan Siegel

    Ethan Siegel

  • Oxford Academic

    Oxford Academic

  • Sara Benincasa

    Sara Benincasa

  • Ms Aerin

    Ms Aerin

  • Tressie McMillan Cottom

    Tressie McMillan Cottom

See all (101)

Help

Status

Writers

Blog

Careers

Privacy

Terms

About

Text to speech

Teams