I hate when that happens. Demography is tricky. Oh well, as they say in astronomy, who cares, it was less than an order of magnitude!
In a unit about the law of large numbers, sample size, and margins of error, I used the notorious beauty, sex, and power example: A researcher, working with a sample of size 3000, found that the children of beautiful parents were more likely to be girls, compared to the children of less-attractive parents. Can such […]
I like the clever way they tell the story. It’s a straightforward series of graphs but the reader has to figure out where to click and what to do, which makes the experience feel more like a voyage of discovery.
Jonathan Falk asks what I think of this animated slideshow by Matthew Klein on “How Americans Die”: Please click on the above to see the actual slideshow, as this static image does not do it justice. What do I think? Here was my reaction: It is good, but I was thrown off by the very […]
It all started when I was reading Chris Blattman’s blog and noticed this: One of the most provocative and interesting field experiments I [Blattman] have seen in this year: Poor people often do not make investments, even when returns are high. One possible explanation is that they have low aspirations and form mental models of […]
[This post is by Aki] This is my first blog posting. Arthur Poropat at Griffith University has a great posting Students don’t know what’s best for their own learning about two recent studies which came to the same conclusion: university students evaluate their teachers more positively when they learn less. My favorite part is That is why many […]
Hi, I’m writing this so I can refer to it when covering “giving a presentation” in my statistical communication class. The general idea is for me to spend less time in class talking and more time helping out students with their ideas. So, if I have any general advice on presentations, let me give it […]
Noted psychology researchers and methods skeptics Leif Nelson and Uri Simonsohn write: A recent Psych Science (.pdf) paper found that sports teams can perform worse when they have too much talent. For example, in Study 3 they found that NBA teams with a higher percentage of talented players win more games, but that teams with […]
I (almost and inadvertently) followed Dan Kahan’s principles in my class today, and that was a good thing (would’ve even been more of a good thing had I realized what I was doing and done it better, but I think I will do better in the future, which has already happened by the time you read this; remember, the blog is on a nearly 2-month lag)
As you might recall, the Elizabeth K. Dollard Professor says that to explain a concept to an unbeliever, explain it conditionally. For example, if you want to talk evolution with a religious fundamentalist, don’t try to convince him or her that evolution is true; instead preface each explanation with, “According to the theory of evolution […]
. . . and Kaiser Fung is unhappy. In a post entitled, “Princeton’s loss of nerve,” Kaiser writes: This development is highly regrettable, and a failure of leadership. (The new policy leaves it to individual departments to do whatever they want.) The recent Alumni publication has two articles about this topic, one penned by President […]
“Patchwriting” is a Wegmanesque abomination but maybe there’s something similar that could be helpful?
Reading Thomas Basbøll’s blog I came across a concept I’d not previously heard about, “patchwriting,” which is defined as “copying from a source text and deleting some words, altering grammatical structures, or plugging in one synonym for another.” (See here for further discussion.) As Basbøll writes, this is simply a variant of plagiarism, indeed it’s […]