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<p>Of course - the job market in academia has only gotten worse. But if LACs were once considered the last-resort for those who couldn’t get a tenured position at a university, wouldn’t a worsening job market just exacerbate that phenomenon? Then again, that might improve the stature of LACs, if great researchers are continually landing at LACs, similar to how great students are continually shut out of the top privates and end up at top publics. It could also be the case that the real last resort these days is working at No Name University or Unknown Religious U or College of Why Did They Choose Such a Terrible Name. These kinds of schools existed before but may have become even more of the “wasteland of academia.” (Harsh, but true.) But the end result for LACs is the same - they’re seen as the inferior choice for researchers, and the quality of the research that profs at LACs produce is generally in line with that.</p>
<p>To be fair, I’ll add that the second-rate research quality isn’t completely the profs’ fault, but probably also has to do with the structure of a LAC - a prof doesn’t have a squadron of grad students to produce papers on which the prof can tack their name without having to do much work.</p>
<p>Your point re: faculty turnover may be valid, though I can’t say. It does seem plausible that universities will hold off on hiring certain faculty, perhaps because a) they want them first to go through a ‘trial period’ as a faculty elsewhere to prove they have the stuff, or b) it completely depends on which positions are open at a given time.</p>
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<p>I think those two factors explain most of it, but a third factor would be the absence of grad students, who start out more advanced. Most of the classes at a university actually don’t require you to be all that advanced. After a certain level, usually after the ‘intro to [subfield]’ courses, undergrads can really go down any advanced path (e.g. move on to graduate courses), although some classes have to be taken in sequence. I firmly believe grad students can have a very strong positive effect on undergrads, but only when the two populations tend to mix a lot (undergrads are then exposed to more advanced students and more advanced topics). So when there are fewer grad students, your point (1) takes effect even more: there’s less ‘splintering’ of interests/paths, and there are fewer students who start out at an advanced level, such that some topics will just never have a demand. That of course means these advanced classes aren’t available for undergrads to take advantage of.</p>
<p>That leads me to my point re: bclintonk’s analysis. </p>
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<p>This is definitely right (although the basis numbers are a bit off, since Stanford’s CDS doesn’t include the 200+ introductory seminars administered by the VPUE). I used to point this out as a better way of looking at average student experience, and still do actually, since it’s more illustrative than looking at % classes in a given range. But it still doesn’t tell the whole story. The criterion for including a class in the CDS numbers is whether at least one undergrad is in that class, which could be an undergraduate or a graduate course. But undergrads are free to take most graduate-level classes, which tend to be small. No one will stop you, and indeed students are prepared to take them once they take the ‘intro to [subfield]’ class in a given area. They can and should do this, which is what I’ve told many, but some are afraid of it (even though grad classes are actually a bit easier in workload although more intellectually demanding). Many students do, but it’s impossible to tell how many. The reasons for why some students don’t are equally elusive - perhaps they prefer the undergrad classes, or they aren’t aware that they can take the grad classes, or they don’t have room after their major requirements + electives, or whathaveyou.</p>
<p>So the CDS numbers can tell you what the average student experience *was *in a certain point in time (e.g. fall 2011), but it doesn’t tell you what your experience could be. It’s further muddled by the variations in department. And while grad courses tend to be small, some are larger. If a single undergraduate enrolls in one of those courses, then that grad course is counted. By the same logic above, this one grad class will dwarf many of the small grad classes that at least one undergrad enrolled in. So the additional variation in department depends on which kinds of grad classes undergrads tend to enroll in.</p>
<p>For example, in CS at Stanford, if undergrads take a grad-level class, it’s nearly always one of the big classes, e.g. in the CS 220 series, even though there are tons of seminars that they could take within those same interests. Why? They’re “all the rage.” It’s not the same in other departments, e.g. psych undergrads who take grad-level classes tend to go for the seminars. (This is in my experience, at least.)</p>
<p>The point is that it’s impossible to know the effect that grad-level classes have on student experience with regard to class sizes. They do have a significant effect on the academic offerings available to students, whether or not the students take advantage of them.</p>