Blog Archives

June and July workshops in doing Bayesian data analysis

March 22, 2015
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June and July workshops in doing Bayesian data analysis

June and July courses in Bayesian statistics. A full list of workshops in doing Bayesian data analysis is here. Upcoming workshops include these:2015 June 1 - 5. Five-day course: Doing Bayesian Data Analysis, at Stats Camp, Dallas, Texas.2015 June 15-1...

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"Is the call to abandon p-values the red herring of the replicability crisis?"

February 26, 2015
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"Is the call to abandon p-values the red herring of the replicability crisis?"

In an opinion article [here] titled "Is the call to abandon p-values the red herring of the replicability crisis?", Victoria Savalei and Elizabeth Dunn concluded, "at present we lack empirical evidence that encouraging researchers to abandon p-values ...

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Journal bans null hypothesis significance tests

February 24, 2015
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Journal bans null hypothesis significance tests

In a recent editorial [here], the journal Basic and Applied Social Psychology has banned the null hypothesis significance testing procedure (NHSTP). "We hope and anticipate that banning the NHSTP will have the effect of increasing the quality of submit...

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I’ve got variable Y that I want to predict from variables X1, X2, etc. What should I do?

February 8, 2015
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For questions like yours -- I've got variable Y that I want to predict from variables X1, X2, etc.; What should I do? -- the best answer is usually informed by background knowledge of the domain. Generic models, like multiple linear regression, don't a...

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Solutions to exercises of DBDA2E through chapter 18 now available

January 30, 2015
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Solutions to exercises of DBDA2E through chapter 18 now available

Exercise Solutions for Chapters 1-18 of DBDA2E are now available at the book's web site.

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Institutionalized publication thresholds, p values, and XKCD

January 26, 2015
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Institutionalized publication thresholds, p values, and XKCD

XKCD today is about p values (see image at right). I think that what XKCD is pointing out is not so much a problem with p values as with strongly institutionalized publication thresholds and the ritual of mindless statistics, as Gigerenzer would say. ...

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Free introduction to doing Bayesian data analysis – Share with friends!

January 16, 2015
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Free introduction to doing Bayesian data analysis – Share with friends!

The goal of Chapter 2 is to introduce the conceptual framework of Bayesian data analysis. Bayesian data analysis has two foundational ideas. The first idea is that Bayesian inference is reallocation of credibility across possibilities. The second found...

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Free introduction to doing Bayesian data analysis – Share with friends!

January 16, 2015
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Free introduction to doing Bayesian data analysis – Share with friends!

The goal of Chapter 2 is to introduce the conceptual framework of Bayesian data analysis. Bayesian data analysis has two foundational ideas. The first idea is that Bayesian inference is reallocation of credibility across possibilities. The second found...

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Link to: Probable Points and Credible Intervals, Decision Theory

January 8, 2015
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See Rasmus Bååth's excellent blog post about Bayesian decision theory here.

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How to specify an informed prior in JAGS/BUGS

January 3, 2015
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An emailer asks about how to specify an informed prior in JAGS/BUGS. Here are some condensed excerpts of the question and my reply. Of course, while the discussion here refers to JAGS/BUGS, the same considerations apply to Stan.Dear Prof. Kruschke,&nbs...

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