Replication Report - Signal Detection Analysis

The following is a report on the reproduction of the statistical work in the paper “Insights into Criteria for Statistical Significance from Signal Detection Analysis” by Jessica K. Witt at Colorado State University.

The original paper was accepted for publication by the Journal of Meta-Psychology, a journal focused on methodology and reproductions of existing work. This report on is my first attempt at establishing a standard template for future such reports according to the Psych Data Standards found here https://github.com/psych-ds/psych-DS

I read this: Smart Baseball

Smart Baseball, by Keith Law, exposes many common baseball statistics like batting average for the garbage they are. He does this in an approachable, narrative style that will appeal to long-time baseball fans. It's very light on statistics, but Law obviously knows his stuff; he just isn't interested in showing off the details.

Venn Diagram Stats Memes

Statistics is great but it doesn't have the best meme portfolio, at least not since Biostatistics Ryan Goslling.

Let's try to fix that.

More after the break.

Statistical Vocabulary Crossword Puzzles

I've expanded the statistical thesaurus again, as well as made some crossword puzzles from them, for vocabulary study.

Degrees of Freedom, Explained

You can interpret degrees of freedom, or DF as the number of (new) pieces of information that go into a statistic. Using examples from this video [https://www.youtube.com/watch?v=rATNoxKg1yA , James Gilbert, “What are degrees of freedom”]

I personally prefer to think of DF as a kind of statistical currency. You earn it by taking independent sample units, and you spend it on estimating population parameters or on information required to get compute test statistics.

In this article, degrees of freedom are explained through these lenses through some common hypothesis tests, with some selected topics like saturation, fractional DF, and mixed effect models at the end.

We read this: "Your bones".

This is review of the book  “Your Bones”, a medical book aimed at the general public by Lara Pizzorno and with Jonathan V. Wright. The review was co-authored with Gabriela Cardillo; she provided the body, medical expertise, and main content and I edited and added the criticisms and asides at the end.

One Thousand Words on Writing Better Surveys

Twenty tips on survey methodology, 1000 words, go!