Category Archives: Statistics

A Visual Image of What “Understand the Limitations of Your Data” Means

One of the things I’ve repeated on this blog a few times is people have to like this crap you have to understand the limitations of your data. In a good Nature piece about how the problems with using p-values … Continue reading

Posted in Genomics, Statistics | 1 Comment

Being VAMbushed By Weapons of Math Destruction

There’s some very interesting public testimony by Luke Flynt, a Florida English teacher. At the end of the post, I’ve included the video–it’s short and very clear (maybe because Flynt is a professional teacher. Just saying). But his testimony about … Continue reading

Posted in Education, Statistics | 2 Comments

P-Values and Throwing Out the Baby With the Bath Water

So last week, the science bloggysphere was briefly abuzz (atwitter?) about the decision by the journal Basic and Applied Social Psychology (BASP) to ban p-value statistics from their articles: The Basic and Applied Social Psychology (BASP) 2014 Editorial emphasized that … Continue reading

Posted in Statistics | 4 Comments

Sample Size and Assessment

Matthew Di Carlo provides a very interesting figure comparing year-to-year school proficiency rates in New York City (i.e., how many students at a given school pass a threshold on an assessment exam): Di Carlo (boldface mine): Classes and schools tend … Continue reading

Posted in Education, Statistics

Maybe This Explains Part of the Reproducibility Problem?

There are a lot of reasons why reproducibility–the ability to replicate results*–is a problem. Some of it has to do with the Decline Effect (and inadequate funding that causes the Decline Effect). There are also basic power of test issues–not … Continue reading

Posted in Cancer, NIH, Statistics

Insensitivity to Instruction: How Do We Know If Our Children Is Learning?

To use a phrase. The Texas Observer has a very interesting story about a researcher who testified in front of the Texas Lege about a fundamental problem with that state’s regime of standardized tests (boldface mine): Then Stroup sat down … Continue reading

Posted in Education, Statistics | 3 Comments

How To Do Replication the Fair Way (You Get What You Deserve Report)

In a long, but very good article about replication in science, I like this suggestion the best (boldface mine): Kahneman rightly notes that the methods sections of most articles reporting original research are insufficiently detailed to allow third parties to … Continue reading

Posted in Statistics