# firths — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover firths. Page: Feed: --- ## [Welcome Back (and Book News)](https://firth.substack.com/p/welcome-back-and-book-news) _2026-08-17 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #145 ## [Summer Recap and What’s Next](https://firth.substack.com/p/summer-recap-and-whats-next) _2026-07-06 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #144 ## [Desirable Difficulties, Variation and Creativity](https://firth.substack.com/p/desirable-difficulties-variation) _2026-06-29 · Jonathan Firth · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #143 ## [Can a Teacher do Research?](https://firth.substack.com/p/can-a-teacher-do-research) _2026-06-22 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #142 ## [Areas of Confusion in Cognitive Science, part 2](https://firth.substack.com/p/areas-of-confusion-in-cognitive-science) _2026-06-15 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #141 ## [Getting Ready for College](https://firth.substack.com/p/getting-ready-for-higher-education) _2026-06-08 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #140 ## [Areas of Confusion in Cognitive Science, part 1](https://firth.substack.com/p/six-areas-of-confusion-in-cognitive) _2026-06-01 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #139 ## [Should Lecturers Know How Learning Works?](https://firth.substack.com/p/should-lecturers-know-how-learning) _2026-05-18 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #138 ## [Does Retrieval Practice Work in Real Classrooms?](https://firth.substack.com/p/does-retrieval-practice-work-in-real) _2026-04-27 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #137 ## [Applying Cognitive Science to Questioning: Timing](https://firth.substack.com/p/applying-cognitive-science-to-questioning) _2026-03-30 · Memory and Metacognition Updates_ Jonathan Firth's Memory & Metacognition Updates #136 ## [Stay updated on your professional world (Sponsored)](https://crawlproof.com/a/KIdFhJwvT1e1) _2026-03-30 · **Sponsored**_ Keep in touch with people you know, build your career. ## [A One-Page Primer on: Statistical Power](https://www.carlislerainey.com/blog/2025-08-30-1p-statistical-power/) _2025-08-30 · Carlisle Rainey · Carlisle's Blog_ “Of course, investigators could not have known how underpowered their research was, as their training had not prepared them to know anything about power, let alone how to use it in research planning. One might think that after 1969, when I published my power handbook that made power analysis as easy as falling off a log, the concepts and methods of power analysis would be taken to the hearts of… ## [For Your Syllabus: Statistical Power](https://www.carlislerainey.com/blog/2025-08-18-for-your-syllabus-power/) _2025-08-18 · Carlisle Rainey · Carlisle's Blog_ As you prepare your courses on quantitative methods, consider including a section on statistical power . Here are five readings I like and often recommend. Quantitative Political Science Research is Greatly Underpowered (Arel-Bundock et al.) This paper shows that low power is a real problem—“doing what others have done” does not guarantee a well-powered study for the true effect. Instead, power… ## [Customize Your Terminal Prompt on macOS](https://www.carlislerainey.com/blog/2025-03-21-customize-your-terminal-prompt-on-macOS/) _2025-03-31 · Carlisle Rainey · Carlisle's Blog_ Motivation This is for macOS using the default zsh shell (used in macOS Catalina and later). The command prompt on macOS doesn’t look nice by default. Here’s my preferred adjustment, where the prompt shows just the current folder followed by \> . Like this: my-folder \> Here’s what I want the Terminal to look like on macOS (when I’m working on website/ ). And Here’s what I want it to look like in… ## [Kane (2025) as a Power Paper](https://www.carlislerainey.com/blog/2025-03-19-kane-2025-as-a-power-paper/) _2025-03-19 · Carlisle Rainey · Carlisle's Blog_ It’s helpful to think of statistical power as determined by the ratio , where is the treatment effect and SE is the standard error of the estimate. 1 1 Bloom (1995) has a really beautiful paper on this idea. It’s one of my favorites. I also have a preprint on the topic. I like this ratio because it makes two distinct tasks clear: create a treatment with some oomph and estimate it precisely. While…