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Showing posts with the label subject matter expert

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Statistics hiding in plain sight: How this four-minute long interview on polling data can be used in class

Statistical literacy is important. I love examples of folks using statistical concepts without being snobby statistical gatekeepers.  For instance, see jargon-free statistical literacy that helps people make important decisions about their children's health or informs the  immigration debate .   As stats teachers, I think we are remiss if we don't talk about political polling in our classes. At least a little bit. Here is a brief, nonpartisan interview about political polling you can use in class to see whether students can identify the concepts they've learned. Here is a short  NPR i nterview o n  how to think properly about political polling. If you use the interview in class, you could ask your students to identify the statistics and research methods mentioned.  I clocked margin of error,  sampling error,  and research methodology evaluation. If using an audio interview isn't your thing, check out t his summary piece from NPR, based on the...

NYT's "Steven Curry has a popcorn problem"

1) I disagree with Marc Stein's title  for this article. I don't think NBA great Steven Curry's devotion to his favorite snack is a problem. I think it is a very, very endearing example of someone who knows themselves, knows what works for them, and embraces it. A quote from the article describing Curry's popcorn devotion: 2) Curry loves popcorn so much that at the behest of the New York Times, Curry rated popcorn served at all of the pro-basketball arenas: Here is an example of the assessment form:  And here are the results of the NYT's n=1 study. In addition to a statistics class example, I think this could also be used in an I/O class to explain Subject Matter Experts ;)

The Tonight Show: Nick Jonas scores as Joe Jonas on Buzzfeed quiz.

Explain validity to your students AND earn some "I'm still hip!" street cred using this The Tonight Show clip that features a Buzzfeed quiz AND exactly one Jonas brother. Nick Jonas took a "Which Jonas Brother are you?" Buzzfeed quiz. He scores as Joe Jonas. Ergo, the Buzzfeed assessment measure is not valid. It does not properly assess what it purports to assess. Watch the video for yourself. If you want to take this example a step further, you could have your students take the original quiz, discuss the questions and their ability to discern which Jonas Brother is which, you could describe Nick Jonas as a Nick Jonas Subject Matter Expert, maybe Social Desirability got in the way of Nick answering the questions honestly, etc. Another thing I've noticed as my blog and I have aged together: There are now generations of Buzzfeed quiz assessments that provide great examples for different age groups: Gen X: Shirley Manson did not score as Shirley ...

Chokshi's "How Much Weed Is in a Joint? Pot Experts Have a New Estimate"

Alright, stick with me. This article is about marijuana dosage  and it provides good examples for how researchers go about quantifying their variables in order to properly study them. The article also highlights the importance of Subject Matter Experts in the process and how one research question can have many stakeholders. As the title states, the main question raised by this article is "How much weed is in a joint?". Why is this so important? Researchers in medicine, addictions, developmental psychology, criminal justice, etc. are trying to determine how much pot a person is probably smoking when most drug use surveys measure marijuana use by the joint. How to use in a statistics class: