Course Recap: Physics of Solar and Renewable Energies, Spring 2021

Before my memories grow even dimmer I should write down some thoughts about the class I taught Spring term: The Physics of Solar and Renewable Energies. Like its companion course, The Physics of Energy and the Environment, which I taught the quarter before and wrote about here, it’s a course for non-science-major undergraduates at the … Continue reading Course Recap: Physics of Solar and Renewable Energies, Spring 2021

Course Recap: Physics of Energy and the Environment, Winter 2021

In the quarter that recently ended I taught The Physics of Energy and the Environment, a course for non-science-major undergraduates at the University of Oregon (UO) that I’ve taught before, though never before as an online, Zoom-based course. (For those reading this in the far-off future: It’s April 2021, and we’re a bit over a … Continue reading Course Recap: Physics of Energy and the Environment, Winter 2021

Comments on over-interpreting results, correlation and causation, and concluding remarks — “Ten common statistical mistakes…” #9-10

This week: the last of my commentaries on Makin and Orban de Xivry’s Common Statistical Mistakes! (Previous posts: #1-2, #3 , #4, #5, #6, #7, #8.) I’m lumping together comments on “Mistake #9” (Over-interpreting non-significant results) and “Mistake #10” (Correlation and causation), as well as concluding remarks, writing one long post instead of two or … Continue reading Comments on over-interpreting results, correlation and causation, and concluding remarks — “Ten common statistical mistakes…” #9-10

Comments on “Failure to Correct for Multiple Comparisons” — “Ten common statistical mistakes…” #8

This week’s installment of comments on Makin and Orban de Xivry’s Common Statistical Mistakes deals with #8: Failure to Correct for Multiple Comparisons. (Previous posts: #1-2, #3 , #4, #5, #6, #7.) Makin and Orban de Xivry’s description is rather complex, but the error is a simple one. To illustrate: suppose we have a control … Continue reading Comments on “Failure to Correct for Multiple Comparisons” — “Ten common statistical mistakes…” #8

Comments on “p-Hacking (Flexibility of Analysis)” — “Ten common statistical mistakes…” #7

This week’s commentary on Makin and Orban de Xivry’s Common Statistical Mistakes covers #7: Flexibility of Analysis: p-Hacking. (Previous posts: #1-2, #3 , #4, #5, #6.) I feel like this has been discussed ad nauseum,* yet the problem still exists. The issue is that flexibility in how one analyzes data, even seemingly innocuous flexibility, can … Continue reading Comments on “p-Hacking (Flexibility of Analysis)” — “Ten common statistical mistakes…” #7

Comments on “Circular Analysis” — “Ten common statistical mistakes…” #6

Next in our series of commentaries on Makin and Orban de Xivry’s Common Statistical Mistakes, #6: Circular Analysis. (Previous posts: #1-2, #3 , #4, #5.) I was thinking of skipping this one entirely. It’s less dramatic than #5 or the upcoming #7, I’m not sure I fully understand the authors’ intent, and my seashore painting … Continue reading Comments on “Circular Analysis” — “Ten common statistical mistakes…” #6