I’ve just read a great series of papers by Denis Cousineau and Jean-Christophe Goulet-Pelletier. They propose a new way to calculate a CI on Cohen’s d in the paired design (e.g., a pre-post study). It’s an approximation, but they show …

Cohen’s d for the Paired Design: A Better Way to Find the Confidence Interval Read more »

We’re delighted to release precision for planning (PfP), the sixth component of esci web. This completes esci web as currently planned. To access, click esci web and then the precision for planning button. Please let’s know how you like it, …

What N Will Give Me the Precision I Want? Gordon’s New Pictures Tell All Read more »

It’s World Statistics Day, with the tagline “Connecting the world with data we can trust“. Yes, Tuesday 20 October is the day. (Also the birthday of Lindy, my wife. Maybe there’s a message there somewhere.) Science is under attack around …

WORLD STATISTICS DAY: “Connecting the world with data we can trust” (also, Open Science) Read more »

I’m delighted to say we’re releasing three new goodies from Gordon Moore: distributions, d picture, and correlation. These follow his wonderful dances introduced here. As I explained, ITNS2 will be accompanied by Bob’s data analysis software, esci, in R, and Gordon’s web-based …

Goodies from Gordon: ‘distributions’, ‘d picture’, ‘correlation’–all part of ‘esci web’ Read more »

A while back I posted (here) about the Diamond Ratio (DR), which is our simple visual indicator of the extent of heterogeneity in meta-analysis. (See ITNS, Chapter 9 for more on the DR.) I reported that Max Cairns, a PhD …

A Confidence Interval for the Diamond Ratio: Estimation of Heterogeneity in Meta-Analysis Read more »

Bob and I are delighted to welcome Gordon Moore who joins us in working on the second edition of ITNS. Gordon, an independent tutor in computing, statistics and mathematics, is based in England, so our ITNS2 team of three now …

Gordon’s ‘dances’: Vivid Simulations Bring Statistical Ideas Alive Read more »

I haven’t read this book–it won’t reach here for a while–but Fiona has written a critique that’s certainly worth reading. Out this week in Nature, you can find her assessment here. From Fiona’s review: “Together with his overview of the …

Fiona’s Take on Richie’s New Book: ‘Science Fictions–How Fraud, Bias, Negligence, and Hype…’ Read more »