dankleinman.bsky.social
Research scientist at Yale Child Study Center (formerly Haskins Labs). PhD. Interested in language, dyslexia, bilingualism, EEG, stats. Proponent of summary limericks. I probably drink more tea than you. Posts are ~50% science; opinions are 100% my own.
117 posts
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620 following
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In La Jolla, CA, you can find the intersection of La Jolla Village Dr. and Villa La Jolla Dr. Close by is the intersection of Nobel Dr. and Lebon Dr., which is just "Nobel" spelled backwards. Together, these streets form a wholly unnecessary square of confusion.
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Always nice when the positive opinion and the purse strings are held by the same people!
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Having come of academic age during the social psych replication crisis, I’ve been overwhelmed by the scope of the structural changes to incentives that would be needed to reduce scientific fraud. Giving ~$1M to @jamesheathers.bsky.social et al. is an excellent step in the right direction.
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Sounds like your notes were written by the algorithm too!
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For sure, a lot of it is “Here is what I’m willing to put up with”. Currently using Outlook for work email, which (on Mac, at least) does not remember which emails were open when it last quit. As a user whose computer regularly has kernel panics, this would be a useful feature!
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Tried Spark on desktop, quit after 2 weeks. The inability to open an email in a new window was a dealbreaker. I also hated that email threads were sorted in chronological order (scroll *down* to view newer emails) & that was unchangeable. Opinionated decisions are only as good as their opinions. ;)
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Not an obscure place, but the Copenhagen Contemporary in Refshaleøen has a Ganzfeld installation (Aftershock) by artist James Turrell, who uses light as a medium. As with his other Ganzfelds, it’s sublimely disorienting (though absolutely verboten for anyone prone to epilepsy). Worth a visit.
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Landing at SAN is quite an experience for the uninitiated. It looks like you’re going to land in Balboa Park — then the hill drops away and it looks you’re going to land in Little Italy — then, suddenly, there’s the runway.
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📌
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In the appropriate voice, I assume.
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In other surprising Passover-related news, a student told me her favorite part of the Seder is finding the afikomen because she gets to negotiate its return.
Me: “What’d you get?”
Student: “Like $30!”
Me: 😮
(A typical bounty at my family’s Seder was $1…)
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(I may have been slow to catch on, but once I did, I did not contradict her further!)
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Anyone who has ever spent a lot of time specializing in something — and this includes every academic — has dreamt of getting The Call. Love to put those poster skills to use! www.penny-arcade.com/comic/2008/0...
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As a classroom exercise, they tasted some chili peppers, rated their spiciness, and tried to account for the data using a logarithmic function. Apparently, this did pretty well. A good reason not to use an interval chili scale!
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Side note: While investigating the linearity of the relationship between capsaicin content and perceived spiciness, I came across this delightful paper by a high school student and his math teacher, which was presented as an example of how to teach logarithms. www.tandfonline.com/doi/full/10....
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Thanks!
(And, I hear you on that. An academic friend once complained to me that they were having trouble doing something very basic around the house. Without thinking, I said “It’s not quantum physics” — to which they, a physicist, said: “That’s the problem!”)
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Not sure if it's just a problem on my end, but the link doesn't resolve for me and it's cut off before the DOI. Could you please re-share the link? (Looks interesting!)
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Are... are these reverse-coded?
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Of course, none of this is useful to me, a non-biologist watching an eagle cam wondering whether I'm looking at the mom eagle or the dad eagle. After all, I can't measure their hallux claw length or bill depth. But that won't stop me from enjoying the heartwarming family scenes.
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He also mentioned that he could improve model accuracy still further by adding another factor, "but a third dimension introduced unnecessary complexity into the analysis". A good example of penalizing for additional complexity.
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Bortolotti devised a simple predictive model to discriminate between sexes using 2 criteria. It achieved 98.1% accuracy in his sample, and it showed validity via extension to 4 live (captive) eagles which weren't used to derive the formula – demonstrating the importance of out-of-sample testing.
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It's a good study in the problems we have to confront for any quantitative analysis. Many possible measures were considered, including length of exposed culmen, bill depth, hallux claw length, bill width, tarsus width, unflattened wing chord, and more. A PCA was used identify relevant factors.
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The answer is from this 1984 paper in The Journal of Wildlife Management, by the aforementioned Bortolotti. He examined 135 bald eagles in museums to come up with the formula in question. doi.org/10.2307/3808...
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A quick Google search led me to this webpage, which teased a precise formula courtesy of a biologist named Bortolotti:
Sex = (bill depth * 0.392) + (hallux length * 0.340) - 27.694
Sex >0 = Female; <0 = Male
Naturally, I wondered where these values came from.
journeynorth.org/tm/eagle/Mal...
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You'd think the prospective NIH head would make it his business to find out where the "tip" goes, but apparently not if the fiction of uncertainty is needed to justify gutting universities. “It is difficult to get a man to understand something, when his salary depends on his not understanding it.”
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From his review: “Three problems with this puzzle: the theme, the fill, and the fact that it doesn’t exist”
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New user here! 🙋 Been meaning to look into it for a while after it was strongly recommended by a MagStim employee; finally did so this week. I’m stunned at how easy it is to use, and it will make sharing processing pipelines *so much easier*. Thanks for putting it out there!