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Culture War Roundup for the week of April 10, 2023

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Accordingly, when i see some AI-doomer post about how GPT-4 has passed the BAR exam in some state or gotten an A on Bryan Caplan's mid-term economics exam, my first thought is in not "oh shit here comes the fast take-off". It's more "and just how diligent were people grading the papers being?". In one of those threads the topic of grading on a curve came up and the question was asked why should we ask professors to go through the effort of calibrating tests to the material when it is so much simpler/easier/more efficient to ask a spread of arbitrarily difficult questions and award the top x% of answers 'A's. I ended up biting my tongue at the time because my knee-jerk response was something to the effect of "because that's fucking retarded and ultimately defeats the purpose of even administering a test in the first place" But upon a moment's reflection I realized that was a very "thing-manipulator" thought to have.

Thus we come back to the issue of inferential distance. I struggle to articulate just how brain-meltingly stupid and arbitrary the whole concept of "grading on a curve" seems to me. But I also recognize that grading on a curve is a widely accepted practice. From this I infer that my concept of a test and it's purpose is wildly different from that of Bryan Caplan and a lot of other users here on theMotte.

Perhaps this is my "thing-manipulator"-ness talking, but it seems intuitively obvious to me that if a teacher or professor is grading on a curve, they are not grading you on your capability or knowledge of the subject. and if they are not grading you on your capability or knowledge of the subject what re they grading you on? It seems to me that if a teacher and their students are on their game it should be possible for 100% of a class to earn a 100% grade. Just as if manufacturing is truly on the ball it should be possible to achieve a 100% pass rate from the QA department. Granted this never actually happens in the real world because life is imperfect but it's something to strive for isn't it? A man might just find himself a member of the '72 Dolphins.

What is the purpose of a test or inspection in the first place if not to verify capability?

That was me. And this complain would make a lot more sense if education was training people to actually do the tasks they perform at their jobs. But it doesn't. Calc tests and econ tests are just academic-themed IQ tests, because nobody actually uses calc or econ in their jobs except for a tiny minority, and that minority could be easily trained on the job instead of outsourcing the task to a 4-year high institution that charges tens of thousands of dollars for the privilege. Employers are using degrees and GPAs to select the top x% employees, not to verify that the student has achieved an objective standard of excellence in subject y (otherwise, would use nationwide standardized tests instead of whatever crap the professor came up with, in which case, WOULD make sense to effortfully calibrate objective passing grades against the material).

From "The Magic of Education" by Bryan Caplan:

Why do employers care about grades and diplomas? The “obvious” story, to most people, is that professors teach their students skills they’ll eventually use on the job. Low grades, no diploma, few skills.

This story isn’t entirely wrong; literacy and numeracy are a big deal. But the “obvious” story is far from complete. Think about all the time students spend studying history, art, music, foreign languages, poetry, and mathematical proofs. What you learn in most classes is, in all honesty, useless in the vast majority of occupations. This is hardly surprising when you remember how little professors like me know about the Real World. How can I possibly improve my students’ ability to do a vast array of jobs that I don’t know how to do myself? It would be nothing short of magic. I’d have to be Merlin, Gandalf, or Dumbledore to complete the ritual:

Step 1: I open my mouth and talk about academic topics like externalities of population, or the effect of education on policy preferences.

Step 2: The students learn the material.

Step 3: Magic.

Step 4: My students become slightly better bankers, salesmen, managers, etc.

Yes, I can train graduate students to become professors. No magic there; I’m teaching them the one job I know. But what about my thousands of students who won’t become economics professors? I can’t teach what I don’t know, and I don’t know how to do the jobs they’re going to have. Few professors do.

Many educators sooth their consciences by insisting that “I teach my students how to think, not what to think.” But this platitude goes against a hundred years of educational psychology. Education is very narrow; students learn the material you specifically teach them… if you’re lucky.