Search Results for “scoring”

How Good Is That Model? Scoring Rules For Forecasts: Part III

Read Part I, Part II Part III This brings us to the second reason for measuring model goodness. Or rather an incorrect implementation of it. A lot of folks announce…

Statistics

How Good Is That Model? Scoring Rules For Forecasts: Part II: Update

Read Part I Part II What we're after is a score that calculates how close a prediction is to its eventual observation when the prediction is a probability. Now there…

Statistics

How Good Is That Model? Scoring Rules For Forecasts: Part I

Part I of III All probability (which is to say, statistical) models have a predictive sense; indeed, they are only really useful in that sense. We don't need models to…

Statistics

Class 85: Proper Scores of Model Goodness

Reminder: The Thursday Class is only for those interested in studying uncertainty. I don’t expect all want to read these posts. So please don’t feel like you must. Yet, I…

Statistics

How To Tell How Much Of “IQ” Is Inherited & How Much Is Environment

Due to the length of tomorrow's and today's post, there will be no post Wednesday. Video at bottom. Word is out (I learned via, naturally, Steve Sailer) about a new…

Statistics

Class 71: Never Trust ‘Research Shows’ Headlines: We Bring Cause To Data

All uses of hypothesis testing are fallacies. The results could be true, or likely, but only accidentally. A proof based on the Resurrection and GPA. Bonus Song Anon sent in…

Statistics

Test Your IQ With These Puzzles! (Not So Easy!)

Here in this Fun Fourth run up are some puzzles to tease out your "IQ". Only those with high "IQ"s will get them, so beware! Try them all first before…

Statistics

How Can You Tell If You Have ESP?

Since this is typically the slowest week of the year---even Christmas is busier---this is a good time to introduce something strange. About twenty years ago I wrote a skeptical (do…

JH on Iran Has Caught Covid: A Reason For The WarApril 10, 2026
Would Trump attack China or Russia? Why not? Bullying is wrong. War is wrong. [H]is specialty is obfuscation… lol. And…
JH on Justice Ketanji RoarsApril 10, 2026
Although I have not taught many Black students, I have observed that the most academically talented Black students perform at…
JH on Proof!April 10, 2026
Lincoln’s ”Fragments on Slavery” c. 1854 If A. can prove, however conclusively, that he may, of right, enslave B.—why may…
Brendan P O'Sullivan on Class 85: Proper Scores of Model GoodnessApril 9, 2026
Bill - An opportunity to help fellow Vets! Look at the following - regarding jet fuel exposure to vets -…
Steve on Proof!April 9, 2026
You don't need a publisher. It's just Godwin's Law in action. For whatever reason, that seals the deal for most…