Data Colada

As described in our previous post (.htm), back in 2006 [email protected] sent three Excel spreadsheets, each "last saved" by user "Dan Ariely", to then-PhD-student-but-now-full-professor Kyle Hyndman. Those spreadsheets contained the data required to reprodu

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-Control by Precommitment." The original study, published in Psy

The Open Science Framework (OSF) was launched in 2012 and almost overnight became the leading platform for the preservation and sharing of scientific data, materials, and analysis code. It made it far easier to endorse open science by making it easier to

Francesca Gino's lawsuit against Harvard is still ongoing. (The trial, if it gets to that, is scheduled for December 2026) While the case drags on, both sides keep filing documents with the court, and most of those documents are publicly available (htm).

A few years ago our Journal Club discussed an interesting methods paper entitled, "Putting Psychology to the Test: Rethinking Model Evaluation Through Benchmarking and Prediction" (.htm). This post describes my attempt to understand what's happening in Fi

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 & clustered standard errors. It's clearly a topic they found bo

t.test(), the R function for running t-tests, is disconcertingly imperfect. A t-test involves computing the difference between two means. And yet, t.test(), does not report… …said difference of means. It reports the p-value for the difference of means, it

For a recent journal club in Barcelona, we read a just published article in the Journal of Experimental Psychology: General (JEP:G). The paper is on the impact of using gen-AI on creativity. The paper proposes an inverted U: people are most creative with

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 ResearchBox. ResearchBox is hosted by the Wharton Credibility

P-curve is a statistical tool we developed about 15 years ago to help rule out selective reporting, be it p-hacking or file-drawering, as the sole explanation for a set of significant results. This post is about a forthcoming critique of p-curve in the st