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• ↓ [136] Metadata Falsificada: The Cover-Up File in Gino v. Harvard
• ↓ [134] Figuring Out Figure 1
• ↓ [133] Heterofriendly: The Intuition for Why You Always Need Robust Standard Errors
• ↓ [132] statuser: R in user-friendly mode
• ↓ [131] Bending Over Backwards: The Quadratic Puts the U in AI
• ↓ [130] ResearchBox: Even Easier to Use and More Transparently Permanent than Before
• ↓ Top Alternatives to datacolada.org

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"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). This post is about a recent filing: Document #222 (pdf). (this post is…"

"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 Figure 1 of that paper, which shows that extremely simple experiments can generate extremely negative R2s. I learned a…"

"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 both important and confusing. Psychologists basically never use robust standard errors. But they…"

"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 reports the confidence interval for the difference of means, but not the difference of means itself…."

Key Topics & Focus Areas for datacolada.org:

[136] Metadata Falsificada: The Cover-Up File in Gino v. Harvard

[134] Figuring Out Figure 1

[133] Heterofriendly: The Intuition for Why You Always Need Robust Standard Errors

[132] statuser: R in user-friendly mode

[131] Bending Over Backwards: The Quadratic Puts the U in AI

[130] ResearchBox: Even Easier to Use and More Transparently Permanent than Before