Blog Archives

About replication bullies and scientific progress …

September 7, 2015
By

These days psychology really is exciting, and I do not mean the Frster case … In May 2014 a special issue full of replication attempts has been released – all open access, all raw data released! This is great work, powered by the open scien...

Read more »

Gaze-cueing and trustworthiness: New paper + raw data + R script on OSF

September 7, 2015
By

Recently, a student of mine (Felix Senbach, now at the University of Edinburgh) and I published a little study on gaze-cueing, and how it is moderated by the trustworthiness of the gazing person. In a nutshell, although instructed to ignore the gaze, p...

Read more »

#HIBAR: Why Using Age as a Proxy for Testosterone is a Bad Deal.

September 7, 2015
By

This is a post-publication peer review (HIBAR: “Had I Been A Reviewer”) of the following paper: Levi, M., Li, K., & Zhang, F. (2010). Deal or no deal: Hormones and the mergers and acquisitions game. Management Science 56, 1462 -1483. A ...

Read more »

In the era of #repligate: What are valid cues for the trustworthiness of a study?

September 7, 2015
By

[Update 2015/1/14: I consolidate feedback from Twitter, comments, email, and real life into the main text (StackExchange-style), so that we get a good and improving answer. Thanks to @TonyLFreitas,@PhDefunct, @bahniks, @JoeHilgard, @_r_c_a, @richardmor...

Read more »

Introducing: The Open Science Committee at our department

July 28, 2015
By

Large-scale replication projects of the last years (e.g., ManyLabs I, II, and III, Reproducibility Project: Psychology) showed that the “replication crisis” in psychology is more than just hot air: According to recent estimates, ~60% of cur...

Read more »

Grades of evidence – A cheat sheet

April 17, 2015
By

There are at least three traditions in statistics which work with a kind of likelihood ratios (LRs): the “Bayes factor camp”, the “AIC camp”, and the “likehood camp”. In my experience, unfortunately most people do no...

Read more »

A Compendium of Clean Graphs in R

March 14, 2015
By

[This is a guest post by Eric-Jan Wagenmakers and Quentin Gronau introducing the RGraphCompendium. Click here to see the full compendium!] Every data analyst knows that a good graph is worth a thousand words, and perhaps a hundred tables. But how shoul...

Read more »

What does a Bayes factor feel like?

January 30, 2015
By

A Bayes factor (BF) is a statistical index that quantifies the evidence for a hypothesis, compared to an alternative hypothesis (for introductions to Bayes factors, see here, here or here). Although the BF is a continuous measure of evidence, humans lo...

Read more »

A short taxonomy of Bayes factors

November 21, 2014
By

[Update Oct 2014: Due to some changes to the Bayes factor calculator webpage, and as I understand BFs much better now, this post has been updated …] I started to familiarize myself with Bayesian statistics. In this post I’ll show some insig...

Read more »

Reanalyzing the Schnall/Johnson “cleanliness” data sets: New insights from Bayesian and robust approaches

July 22, 2014
By

[mathjax] I want to present a re-analysis of the raw data from two studies that investigated whether physical cleanliness reduces the severity of moral judgments – from the original study (n = 40; Schnall, Benton, & Harvey, 2008), and from a ...

Read more »


Subscribe

Email:

  Subscribe