Poverty and Educational Achievement: the importance of having enough

Everyone knows that, on average, poor kids do worse in school and on reading tests. Poverty is highly correlated with school success, and in fact despite the perennial search for unicorn schools that can magically bring poor kids up to the level of rich kids, I have never seen any evidence of a school that can bring a non-cherry-picked population of poor students to the level of achievement of many schools full of non-poor students. I've written about this here and here. Today I want to highlight a couple of studies that point to why poverty has such powerful effects. But first, I want to highlight a few common but misguided responses to the fact that poverty plays a huge role in educational achievement. 

The first response is to write off the difference as simply genetic, and therefore impossible to change. Beyond being probably just wrong, this response is not socially acceptable, so you don't see it said explicitly very often, but I do think it's an unspoken assumption that underlies some of our inaction.

Another response is to blame the individual students or their families. If they aren't rich, it's their fault, because they didn't follow Benjamin Franklin's precepts: work hard, be abstemious, and save money. Like the genetic response, this is a mostly unspoken excuse for inaction.

A third response is to blame teachers, or teachers' unions, or schools. This is absurd, since there is literally no school that actually manages to overcome poverty and educate non-cherry-picked students up to the level of low-poverty districts, but its absurdity doesn't prevent its being a favorite idea of education reformers everywhere. They get to cloak their elitism and greed in the guise of social justice.

A fourth response, which is in some ways the most interesting, is to suggest that what sets the rich kids apart is that they are given extra help and cultural "enrichment" by their families. I hear this one all the time from well-meaning colleagues. Rich kids get trips to Europe, and to museums, while poor kids go to the broken down playground down the street. Rich kids go to artsy summer camps in Maine, while poor kids go to the Y. Rich kids get tutoring, while poor kids sit in front of the TV. There may be something to this, but it makes it seem like the difference between poor kids and rich kids is that the rich kids get something extra, and I don't think that's true. 

It's not that rich kids are getting something extra, it's that poor kids aren't getting enough.

When I was a kid, my family did not go to Europe. I didn't attend expensive summer camps. My mom was on food stamps for a while. My parents worried about money. They ended up doing fine, but they were always incredibly frugal. I never had a tutor (though to be fair I did have highly educated parents who were around a lot). What I did have was about a million books, and lost of time to read them, and not many worries about my material comfort. I was pretty sure I was going to get enough to eat.

Two recent studies show the importance of getting enough:

1) Study 1: Kids read better when they're fed better

SNAP is the government program that gives low-income families a debit card with which they can buy food (people still refer to the program as "food stamps"). This is a great program, but it doesn't provide all that much money (less than $150 per person per month). The debit card is credited once a month, and families often find themselves running out of money as the month goes on.

In North Carolina, the money is credited to different families at different times, depending on the last couple of digits of the recipient's social security number. This allows for cool natural experiments like the one in the paper I read. A study by a Duke professor compares students' standardized test scores to when the students' families received their SNAP benefits. It turns out that scores are at their worst just before and just after the benefits are credited, and the scores are best about two to three weeks after the money arrives.

In the words of the study authors:

Student reading test scores appear to peak in the period from the 15th to 19th day post-SNAP receipt, and student math test scores appear to peak in the period from the 20th to 24th day post-SNAP receipt.

This interesting result suggests that nutrition matters to testing--and, by extension, very likely matters to learning as well. It doesn't matter a huge amount (something like 3% of a standard deviation), but it is easy to imagine a relatively small effect snowballing over time and creating a reverse Matthew effect, since if you fall behind by even 0.5% every year, by the time you're a senior in High School you will be behind by 6%, and it's likely that even at peak performance, kids whose families receive SNAP benefits will be less well-fed and more stressed in general.

2) Study 2: The stress of poverty takes up mental bandwidth

This study, by a few economists, two of whom wrote a book about this effect, is a bit further from education, but has larger effect sizes. These scholars did experiments designed to study how the stress of worrying about money affects cognitive performance. The results were more dramatic than I would have expected.

In one set of experiments, the authors asked shoppers at a mall in New Jersey to consider how they would handle a financial issue--for example, “Your car is having some trouble and requires $X to be fixed. You can pay in full, take a loan, or take a chance and forego the service at the moment... How would you go about making this decision?”)--and then, while they were considering the financial issue, to perform some basic cognitive tasks. If the financial issue was relatively easy (e.g. the car only required $150 to fix), then rich and poor people performed equally well on the cognitive tasks. If the issue was more difficult (e.g. the car required $1500 to fix), then rich people scored much, much better on the cognitive tasks, probably because the poor people were worrying about how they would come up with the $1500.

In another experiment discussed in the same paper, the authors gave cognitive tasks to small-holding sugarcane farmers in India before and after the harvest. This is a naturally randomized experiment, since different farmers harvest their sugarcane at very different times, over a several month period, according to when the sugarcane mills, which have a limited capacity, can process their cane.  The time before the harvest is not a time of poor nutrition, but it is a time of financial pressures (for instance, the farmers pawn items at a much higher rate). In this time of financial pressure, the farmers were much, much worse at cognitive tasks than they were during the relatively flush period after they harvested and sold their crop.

In these experiments, poor people who were thinking about money pressures performed far worse on cognitive tests than when they weren't thinking about money, and worse than people who had enough money that they didn't have to think about it.

Fortunately, these studies point to a relatively simple solution: reduce poverty!

It seems obvious to me that the solution to the poverty problem is not better education; rather, the solution to the education problem is less poverty. Just as we know, from studying public health, that the most important factors in a population's physical health and longevity are not the quality of the hospitals and doctors, so, in education, the most important factors in academic performance are not the quality of the schools and teachers. Just as my cousin wants to be an excellent doctor, so I want to be an excellent teacher. But as a society, we need to pay more attention to educational public health, and restructure our society so that, as in other rich countries, poor children are less poor. As a bonus, these policies would make us healthier, too!

Students who need to read in school

It works to make kids do their homework in school

Leafstrewn has just gone through a remarkable episode in which the headmaster's proposal to cut the administrator of an alternative program for kids who are having a lot of trouble in school was met with such opposition from the faculty that she changed her mind.  The episode was remarkable mostly for the teachers' support for a program serving a small fraction of our students, support that will mean losing teacher jobs, but also because the headmaster admitted, quite gracefully, that she had made a mistake.  Everyone came out looking pretty good, and I was proud of our school.

The episode also reminded me of how effective this particular alternative program has been. Five students from my ninth grade classes last year are now in the program, and four of the five have spoken to me positively about it (the fifth I haven't happened to bump into). As the potential cut to the program was in the balance over the past week, I've been thinking a lot about what has made it so successful for my former students.  It certainly helps that the program has very good teachers and a caring and very hands-on administrator, but perhaps the key element of the program is that the students are made to do their homework in school.  As one of them told me recently, after I'd asked if he was doing the assigned reading, they have to get the work done, or they don't get to go home at the end of the day.

This is a simple but extremely important practice.  It seems indisputable that the number one proximate cause (as opposed to indirect factors like poverty) of student failure at Leafstrewn is failure to do homework.  Having an even better teacher might help, being more genetically gifted might help, and coming from a richer and more educated family certainly helps, but the line separating passing from failing is basically whether kids get their homework done. Certainly for my five students from last year who are now in our alternative program, had they all done their homework, they all would easily have passed English for the year.  (Another program here, the "Tutorial" program, essentially gives students time, space and encouragement to do their homework in school.) This makes me wonder, again, about the value of homework, and it makes me think that Bruce Baker is right and the (modest) success of programs like KIPP is mainly due to spending more money on, among other things, a longer schoolday.  It also makes me think, again, about the value of reading in school.

A student who doesn't read

I had a chat today with a former student who isn't in this alternative program.  I'll call him "Billy."  Billy is a bright, polite, very appealing kid whose family has not had it easy, to put it mildly.  When he was in my ninth grade class two years ago, Billy told me regularly that he wanted to drop out of school so that he could get a job and help support his family.  Like everyone else, I told him that he would be able to help his family better if he stayed in school.  Billy passed my class, barely.  He read virtually none of the assigned reading or our whole-class texts.  He did, however, read four or five Alex Rider books (which are at about a fifth grade level).  Those may have been the only books he has completed in high school.

Billy told me he had failed English in 10th grade and he was in danger of failing this year as well. I asked why. He said: "Because I don't do my homework."  I said, "Do you do the reading?"  He said, "No.  Never."  I said, "But you read in my class.  I remember you reading Alex Rider."  He said, "Yeah, because we read in class. I don't read at home.  I never read at home in your class either."  I don't think that's strictly accurate--I remember him reading Alex Rider at home as well--but it gets at an important truth.

Reading is the most important academic skill.  As I wrote last year, "Our school has kids under its control for over six hours a day.  There is no good reason we can't have them sitting and silently reading books for at least an hour each day.  Nothing else we do with them is as important; nothing else would be as efficient, productive, and individualized." Or, as a Mexican novelist recently wrote in the New York Times, "One cannot help but ask the Mexican educational system, “How is it possible that I hand over a child for six hours every day, five days a week, and you give me back someone who is basically illiterate?”"

If we think reading is valuable, we should be using time in school to have them do it. That a child as bright and wonderful as Billy--a student who devoured Alex Rider books during a six-week independent reading unit--can have read fewer than ten books over his whole high school career is shameful for our school.  We have taken care of Billy in many ways, and we have always treated him with gentleness and respect, but we have mostly not done for him what we would do for our own children--given him books he can read and time to read them.

Homework in School and Social Justice

The proximate cause of these students' failure is that they don't do their homework, but they all share a deeper cause as well: Billy, the students I had last year who ended up in the alternative program, and every student I have this year who is in danger of failing, all come from families that are at the low end of the economic spectrum.  If we really want to "reform" education in a way that will help poorer children succeed, we should start by finding a way to do what our excellent alternative program here at Leafstrewn does, and give kids time to do their homework--especially their reading--in school.

One issue that might be studied by a professor of Educational Public Health

High school graduation rates have been going up steadily over the past fifteen years or so--why?

The obvious way to start thinking about that question would be to consider what's happened in schools.  That's one thing done by the Ed. School professor who's been studying the issue, Richard Murnane:

"The economist, a professor at Harvard’s education school, speculates that some high school students dropped out when high schools raised standards for graduation because they realized they wouldn’t get over the bar.

"The recent improvement, he speculates, may be the welcome byproduct of a upturn in math and reading skills, as measured by test scores, among minorities in the years before the students reach ninth grade."
 
Nevertheless, schools are probably the wrong place to look to explain changes in the graduation rate, since schools are not the main driver of their own success.  As Professor Murnane knows (he has himself done good work on the educational effects of changes in economic inequality), you'd be more likely to figure out why graduation rates are rising if you considered social factors, like a changing job market, changing family composition, or environmental clean-up or degradation.

As it happens, one out-of-school factor I saw mentioned was in a blog post that wondered whether the phase-out of leaded gasoline and the steep drop of atmospheric lead, which several scholars have credited with the steep drop in crime over the past twenty years, could also have contributed to the increase in graduation rates.

Why we need Graduate Schools of Educational Public Health

The leaded gasoline link is debatable and will no doubt be picked up by scholarly researchers who have more time and resources than bloggers do; perhaps Professor Murnane himself will look into it.  Unfortunately, Professor Murnane is an anomaly. Almost all of the research being done at the GSE seems to be focused on in-school factors. There are research projects on "leadership", on educational policy, on data, on "educational accountability", on child development, on teacher training, on teaching math, and so on.  Looking at the GSE's list of research projects is somewhat depressing, because none of the projects are focused on what would really make a difference in educational outcomes--that is, out of school factors like poverty, libraries, health, nutrition, and equality.

That's why I think we need a new graduate school focused on educational public health.  If only Bill Gates would do what the Rockefeller foundation did a hundred years ago, and put his money into something that would make a positive difference in educational outcomes, instead of funding largely irrelevant projects that will serve mainly to disempower teachers.

Educational Public Health and the "Broader, Bolder Approach"

A hundred years ago this year, in 1913, Harvard and MIT, in a joint venture, founded the first American school of public health.  That same year, the Rockefeller foundation sponsored a conference that led to the expansion of Harvard’s school of public heath and the founding of another school at Johns Hopkins.  Over the past century, the field of public health has made amazing progress—arguably, far more than medicine—in improving and expanding American lives.  Now, a hundred years later, it’s time for a similar effort in education.  Along with graduate schools of education, which focus mainly on in-school factors of our educational life, we also need graduate schools that would study the many significant out-of-school, society-wide factors in education. 

I wrote a post a few months ago outlining this idea of educational public health.  That original post is here.  I also got in touch with some of the very few Americans who work on these issues full-time.  Elaine Weiss, who runs an effort called the "Broader, Bolder Approach to Education," liked my post well enough to put an edited version of it up on her Huffington Post blog, under her and my byline.  You can find it here. 

The Broader, Bolder Approach, affiliated with the worthy Economic Policy Institute, is one attempt to do some of what I have suggested a graduate school of public education might do.  You can support them by visiting their website and reading about their work, and by joining luminaries like Linda Darling-Hammond and Diane Ravitch, and teachers like me, and signing on to the BBA's mission statement.