A new paper in Psychological Science (.htm) reports a failure to replicate Study 2 of Ariely and Wertenbroch’s influential article entitled, “Procrastination, Deadlines, and Performance: Self-Contr…

When I taught my first PhD-level methods course, I invited students to submit questions about any topic in statistics or methodology. Six out of 10 students asked about the same topic: robust & cluste...

Over the past 10 years or so, posting data, code, and materials for published papers has gone from eccentric to mundane. There are a few platforms that enable sharing research files, including Researc...

In Colada[124] I summarized a co-authored critique (with Banki, Walatka and Wu) of a recent AER paper that proposed risk preferences reflect 'complexity' rather than preferences a-la Prospect Theory. ...

Kahneman and Tversky’s (1979) “Prospect Theory” article is the most cited paper in the history of economics, and it won Kahneman the Nobel Prize in 2002. Among other things, it predicts that people ar...

This post delves into a disagreement I have with three prominent political scientists, Jens Hainmueller, Jonathan Mummolo, and Yiqing Xu (HMX), on a fundamental methodological question: how to analyze...

A forthcoming paper in the Quarterly Journal of Economics (QJE), "A Cognitive View of Policing" (htm), reports results from a field experiment showing that teaching police officers to "consider differ...

There is a 2019 paper, in the journal Political Analysis (htm), with over 1000 Google cites, titled "How Much Should We Trust Estimates from Multiplicative Interaction Models? Simple Tools to Improve ...

There is a classic statistical test known as the Kolmogorov-Smirnov (KS) test (Wikipedia). This post is about an off-label use of the KS-test that I don’t think people know about (not even Kolmogorov ...

A forthcoming paper in Psych Methods (.pdf) had a set of coders evaluate 300 pre-registrations in terms of how informative they were about several study attributes (e.g., hypotheses, analysis, DVs). T...