When people want to mock ed schools and the low IQ of the students within them, they often go straight to the coursework. Millions of pages mocking absurd ed school projects have been offered up as evidence that lordy, America’s teachers are none too bright.
Do not confuse my disdain for those mockers as defense of ed school courses. I myself did my best to avoid ed school and those projects. I failed. Teacher credentials are a pay to play activity. We all bulldoze through the bullshit irrespective of our views.
However, those courses have nothing to do with demonstrating teacher intellect.
Tests, not coursework, define the entry barrier to teaching1. The licensure tests never get mentioned in the “teachers are stupid” corner. Even in more respectable journalistic outputs, the tests get a single sentence halfway through the article in the polite wailings of low teacher ability. I’d wager that a survey of every single American who holds the uncritical opinion that teachers are of uniformly low intellect would reveal a full 80% of them don’t know about credential tests. The other 20% have heard of credential test, but point that that the pass rate is 100% so the tests are a joke. All teachers pass the tests, so the tests are easy.
They’ve got it backwards. People who don’t pass the tests don’t become teachers.
Again: The cognitive barrier to teaching is the subject matter licensure test. 2
The licensure tests (also commonly described as credential tests or competency tests), play two roles that are often ignored in teacher policy issues.
First, the tests are a significant obstacle for would-be black and Hispanic teachers (see the footnotes for links to further discussion). Most think pieces on the dearth of “minority” teachers avoid mentioning that close to 60% of blacks and half of Hispanics fail the elementary school credential tests. Fewer blacks and Hispanics even attempt to become high school academic teachers, so the fail rates are slightly lower, but still in the 30-40% range.
Here are Texas pass rates by test but not by race, which would do more to explain why there are far fewer black and Hispanic high school teachers, and why TEA has been dishing out emergency credentials and handling massive cheating scandals.3
Illinois pass rates do publish by test and race. Of the 601 black teacher candidates who took the elementary school test in 2022-24, 59% passed. Hispanics do much better at 89% of the 1629 who took it. Middle school science teachers sound pretty good with blacks at 61% and Hispanics at 85% until you see that just 75 and 110 in each category took the test in two years. High school math? 27 out of 81 for blacks, 129 out of 204 for Hispanics, and 960 out of 1,177 for whites. Illinois does have a middle school math test that passed 94 out of 135 blacks, 211 out of 237 Hispanics, and 1,292 out of 1,353 whites.
Similar pass rates are found in every state. And that, readers, is a major reason why most American teachers are white. 4
Please, let these pass rates guide you to grasping an essential point: yes, ed schools focus pervasively on DEI. But they can’t commit affirmative action. In the 90s, ed schools would graduate candidates without requiring the test and those teachers could get an “emergency credential” that was in fact permanent—until NCLB changed the law, ending emergency credentials, requiring a licensure test, and didn’t grant any grandfathering.5
The institution of the required credential tests and published pass rates severely constricts education schools. They can’t credential underrepresented minorities using a different standard. Candidates have to pass the licensure tests to get the credentials. And the fail rates reveal they represent a significant cognitive challenge that are keeping out thousands of low achievers nationwide.
The institution of credential tests and closed loopholes ended a number of teaching careers, created a much-noticed dearth of black and Hispanic teachers, and led to three separate credential test cheating rings (one of which was just uncovered last year).6
To the extent credential tests are mentioned in public conversation (a rare occurrence), their impact on black and Hispanic teacher pools are the sole reason.
But there’s another important but unmentioned role: the tests keep a non-trivial percentage of whites and Asians out, too. This fact isn’t explored or discussed because the inevitable conclusion is that many college students and graduates who would like to become teachers and pay non-trivial sums to take the credentials tests can not, in fact, pass those tests.
How difficult are the tests? Elementary school teachers have to pass a knowledge test at about the tenth grade high school level—algebra1, fractions, ratios, grammar, reading comp. Harder math than was on high school graduation tests when states required them, considerably more science and history.
Note the irony: I’m defending the intellect of elementary school teachers by observing they can pass a high school test.
But if a tenth grade credential test is such a low bar, why are so many college graduates tripping over it? Elementary teachers have to clear a hurdle that washes out others who either have or end up with college degrees. Are elementary school teachers on the low end of the intellectual heap of college majors? Absolutely. Low end of general intelligence? Not even close.
This is a sad commentary not on ed schools, but on the college diploma, the value of which has been corrupted for decades.
Secondary academic teachers are far beyond that minimal standard, and one of the true lies of the education reform and conservative movements is their continued determination to ignore the cognitive differences between k-6 and 7 -12. Secondary teachers have to pass tests roughly equivalent to an Advanced Placement test in that subject. These are not easy tests. They assess a lot of content knowledge.
Anecdotal example: My best GRE scores are 800Q, 790V (man, I begrudge that last miss). But the GRE at that time was an IQ test, not a content assessment. In the same two year period I took the GRE, I also took licensure tests in English, history, and math. The English and history tests were a blast. Not simple, but challenging and interesting tests that were clearly testing a wide range of knowledge. The math tests were a comprehensive assessment of the entire high school math curriculum: linear algebra, plane geometry, analytic geometry, statistics, trigonometry, and calculus. I took that series expecting to fail the first time, since my content knowledge back then had gaps and I needed to know what I was missing. I passed one, but had to learn some more content before I completed the series.
Point being: the secondary education licensure tests aren’t easy for smart people to fake their way through. They are achievement tests, not IQ tests. The elite pundits who lament America’s poor teacher quality probably couldn’t pass the science and math tests. Scientists and mathematicians could not, in all likelihood, pass the history tests. Many couldn’t pass the English tests.
The tests aren’t impossibly difficult at all. Professionals could in most cases pass the tests in their field. The math and science academics would, I suspect, consider their subject tests ludicrously easy; I’m less certain that’s true for wordcels and the English and history tests.
What concerns me about the mainstream failure to understand the impact of credential tests is that the educational institutions would dearly, dearly love to be rid of them. Since “the discourse” holds that teachers are already barely functioning idiots, there is very little public awareness of the crucial gatekeeping function these tests actually perform. Texas is now hiring about a third of their new teachers absent any credential test and no one notices, while you can still find ignoramuses declaring that New York ended all credential tests, when in fact no, it only ended the one that didn’t involve subject matter knowledge.
The California State University system (CSU) boasts that it turns out half of California’s credentialed teachers and 1 out of every 25 teachers credentialed in the US. Despite the many people spiking the ball about “colleges bringing back the SAT”, the state colleges that educate millions of students have not brought it back, or never did. The CSU system has no plans to, and it’s not alone. State systems turn out the most teachers. Credential tests not only ensure we have reasonable intelligent teachers who know the content, but also in today’s SAT/ACT-free world they are the only thing preventing purely illiterate teachers.
The credential test barrier is important. Preserve it. Welcome it. That means acknowledging that the barrier is real, creates the shortage of black and Hispanic teachers that everyone bewails. We should absolutely examine the barriers, particularly for those teaching the youngest students, to see if they need to be as high. But stop ignoring them. Today’s standards may not look like paradise, but you don’t want to know what you’ve got when they’re gone.
1I’ve covered a lot of the history of the rise of subject matter tests, their pass rates, and why they are the most important aspect of teacher credentialing. Here’s a partial list: Ed Schools and Affirmative Action, It’s the Test Zitbrains!, Oh Woe! No Teachers of Color!, The Available Pool, Teacher Credential Test Cheating, Radio Silence on Clarence Mumford.
2Someone uniformed will say “Yeah, but New York did away with its test!” New York did away with the ALST, which was a required test IN ADDITION to its subject matter competency tests. New York still has subject matter competency tests. It has had them since the 80s.
3See my article: Teacher Credential Test Cheating
4I’ve skipped Asian numbers because a) they’re small and b) conflated with Pacific Islanders. Suffice it to say that even in math, whites have a higher pass rate. I’m not sure if this is due to the Pacific Islanders or the cultural preference that is illuminated by the following wisecrack I made back in ed school. A classmate said “It’s weird how our program brags about its 30% diversity when all the diversity is Asians.” “Yeah,” I said. “And every single Asian here has a really fucking disappointed parent.”
5There’s a complete history of this in my article aptly titled Ed Schools and Affirmative Action.
6Again, check out Teacher Credential Test Cheating


