Tag Archives: schools

Education Matters, But Direct Anti-Poverty and Inequality-Reduction Efforts Matter More

I once began a K-12 education talk by putting the following two questions on a screen.

1. What is the single policy change that would most improve the quality of K-12 education?
2. What is the single policy change that would most reduce the opportunity gap between low-income and high-income students?

I asked audience members to, by a show of hands, indicate which question spoke to them more.  They had three choices:

A) Question 1
B) Question 2
C) Doesn’t matter, since both question 1 and question 2 have the same answer

Stop and think for a second about which choice would have prompted you to raise your hand.

If you would have selected choice C, you would have been joined by about 90 percent of the audience at my talk.  I expected that result.  In a culture in which politicians routinely say things like “education is the closest thing to magic we have here in America” and cite low graduation rates in low-income areas as evidence of our education system’s failures, that view is unsurprising.

It’s also completely wrong.  The overwhelming evidence that choice C is incorrect falls into at least five primary buckets:

1) There are large gaps in test score performance in the United States before students enter kindergarten. The graph shown below, from the Economic Policy Institute, documents the extent of these gaps (there are gaps in various cognitive and noncognitive skills as well), and as Sean Reardon has shown, there is evidence that they close during the school year, only to reopen during the summer months.  The gaps have declined in size since the late 1990s, but they are, in Reardon’s words, “still huge.”

EPI Kindergarten.png

Inequitable access to preschool for low-income students is definitely part of the problem here, but gaps are apparent in infancy and probably due mostly to differences in housing, nutrition, medical care, exposure to environmental hazards, stress, and various other factors.

2) Decades of research into the causes of the gap in test scores between low-income and high-income students in the United States has consistently found a limited contribution from school-based factors. In the US, variations in school quality seem to explain no more than 33% of the discrepancies in test score performance; this number, which has been around since 1966, considers the influence of a student’s classmates to be a school-based factor (it arguably isn’t) and thus seems to be a conservative upper bound. Most studies put the school-based contribution to what is commonly called the “achievement gap” closer to 20%, with about 60% attributable to “student and family background characteristics [which] likely pertain to income/poverty” and the other 20% unexplained.

3) Economic success in this country is less common for low-income students who are successful in school than for high-income students who are unsuccessful in school. The graph below, made using data from the Pew Economic Mobility Project, compares the distribution of adult economic outcomes for children born into different quintiles of the income distribution with different levels of educational attainment.  If education were the prime determinant of opportunity, we’d expect educational attainment to determine these adult economic outcomes.  Yet the data show that children born into the top twenty percent who fail to graduate college typically fare better economically than children born into the bottom twenty percent who earn their college degrees.  In fact, the born-into-privilege non-graduates are 2.5 times as likely to end up in the top twenty percent as adults as are the born-poor college graduates.

Mobility - Pew

4) The test scores of students in the United States relative to the test scores of students around the world aren’t all that different than what students’ self-reports of their socioeconomic status would predict. The Programme for International Student Assessment (PISA) has an “index of economic, social, and cultural status” which incorporates family wealth, parents’ educational attainment, and more.  There is a gap in test score performance between students who score high on this index and students who score relatively low on it in every country in the world.  The size of the gap varies by country, as does the median test score, but there is a strong correlation overall between students’ socioeconomic status and their performance on standardized tests.  The first graph below, in which each data point relates the average socioeconomic index score for a decile of a particular OECD country’s students to that decile’s average performance on PISA’s math test, depicts this relationship.

OECD Test Scores - All.png

As the next two graphs show, test score performance for the bottom socioeconomic decile in the United States falls right on the OECD bottom-decile trend line, and while U.S. test scores for the second decile are a little below the OECD trend (as are U.S. scores for the next few deciles), socioeconomic status seems to explain American students’ performance on international tests pretty well overall.

OECD Test Scores - Bottom Decile.png

OECD Test Scores - Second Decile.png

5) The distribution of educational attainment in the United States has improved significantly over the past twenty-five years without significantly improving students’ eventual economic outcomes. While people with more education tend to have lower poverty rates than people with less education, giving people more education neither creates quality jobs nor eliminates bad ones, as Matt Bruenig has explained.  A more educated population (see the first graph below), therefore, just tends to shift the education levels required by certain jobs upwards: jobs that used to require only a high school degree might now require a college degree, for example.  The “cruel game of musical chairs in the U.S. labor market” (as Marshall Steinbaum and Austin Clemens have called it) that results is likely part of why poverty rates at every level of educational attainment increased between 1991 and 2014, as shown in the second graph below.


Source: Matt Bruenig


Source: Matt Bruenig

Bruenig’s analysis lacks a counterfactual – the overall poverty rate may well have increased if educational attainment hadn’t improved, rather than staying constant – but it’s a clear illustration of the problem with primarily education-focused anti-poverty initiatives.

None of this evidence changes the fact that education is very important.  It just underscores that direct efforts to reduce poverty and inequality – efforts that put more money in the pockets of low-income people and provide them with important benefits like health care – are most important if our goal is to boost opportunities for low-income students.


Filed under Education, Labor, Poverty and the Justice System

Approaching Education Data the Nate Silver Way

My girlfriend’s very hospitable and generous family gave me some great gifts for the holidays when I stayed with them in upstate New York.  As I rocked my new Teach For America T-shirt in the Rochester airport on Christmas Eve, my cursory overview of Nate Silver’s new book, The Signal and the Noise, inspired me to write this post.

While most people probably know Silver for his election predictions and designation in 2009 as one of the world’s 100 Most Influential People, Silver has been my baseball stat guru for considerably longer than he’s been doing political analysis.  In one of my favorite books of all time, Baseball Between the Numbers, Silver penned a brilliant examination of clutch hitting that I still quote at least four or five times a year.  I have generally found Silver’s arguments compelling not just because of his statistical brilliance, but also because of his high standards for data collection and analysis, evident in the following passage from the introduction of his book:

The numbers have no way of speaking for themselves.  We speak for them.  We imbue them with meaning…[W]e may construe them in self-serving ways that are detached from their objective reality…Before we demand more of our data, we need to demand more of ourselves.

In few fields are Silver’s words as relevant as education.  While the phrase “data-driven” has become ubiquitous in discussions of school reform and high-quality instruction, most people discussing education have very little understanding of what the statistics actually say.  As I’ve written before, many studies that reformers reference to push their policy agendas are methodologically unsound, and many more have findings very different than the summaries that make it into the news.

It’s hard to know how many reformers just don’t understand statistics, how many fall victim to confirmation bias, and how many intentionally mislead people.  But no matter the reason for their errors, those of us who care about student outcomes have a responsibility to identify statistical misinterpretation and manipulation and correct it.  Policy changes based on bad data and shoddy analyses won’t help (and will quite possibly harm) low-income students.

Fortunately, I believe one simple practice can help us identify truth in education research: read the full text of education research articles.

Yes, reading the full text of academic research papers can be time consuming and mind-numbingly dull at times, but reading articles’ full text is vitally important if you want to understand research findings.  Sound bites on education studies rarely provide accurate information.  In a Facebook comment following my most recent post about TFA, a former classmate of mine referenced a 2011 study by Raj Chetty to argue that we can’t blame the achievement gap on poverty.  “If you leave a low value-added teacher in your school for 10 years, rather than replacing him with an average teacher, you are hypothetically talking about $2.5 million in lost income,” claims one of the co-authors of the study in a New York Times article.  Sounds impressive.  Look under the hood, however, and we find that, even assuming the study’s methodology is foolproof (it isn’t), the actual evidence can at best show an average difference of $182 in the annual salaries of 28-year-olds.

As I’ve mentioned before, there’s also a poor statistical basis for linking student results on standardized test scores to teacher evaluation systems.  Otherwise useful results can give readers the wrong impression when they gloss over or omit this fact, a point underscored by a recent article describing an analysis of IMPACT (the D.C. Public Schools teacher evaluation system).  The full text of the study provides strong evidence that the success of D.C.’s system thus far has been achieved despite a lack of variation in standardized test score results among teachers in different effectiveness categories.  Instead, the successes of the D.C. evaluation system are driven by programs teachers unions frequently support, programs like robust and meaningful classroom observations that more accurately measure teacher effectiveness.

Policymakers have misled the public with PISA data as well.  In a recent interview with MSNBC’s Chris Hayes, Michelle Rhee made the oft-repeated claim that U.S. schools are failing because American students, in aggregate, score lower on international tests than their peers in other countries.  Yet, as Hayes pointed out, it is abundantly clear from a more thorough analysis that poverty explains the PISA results much better than school quality, not least because poor US students have been doing better on international tests than poor students elsewhere for several years.

I would, in general, recommend skepticism when reading articles on education, but I’d recommend skepticism in particular when someone offers a statistic suggesting that school-related changes can solve the achievement gap.  Education research’s only clear conclusion right now is that poverty explains the majority of student outcomes.  The full text of Chetty’s most recent study defending value-added models acknowledges that “differences in teacher quality are not the primary reason that high SES students currently do much better than their low SES peers” and that “differences in [kinder through eighth grade] teacher quality account for only…7% of the test score differences” between low- and high-income schools.  In fact, that more recent study performs a hypothetical experiment in which the lowest-performing low-income students receive the “best” teachers and the highest-performing affluent students receive the “worst” teachers from kinder through eighth grade and concludes that the affluent students would still outperform the poor students on average (albeit by a much smaller margin).  Hayes made the same point to Rhee that I made in my last post: because student achievement is influenced significantly more by poverty than by schools, discussions about how to meet our students’ needs must address income inequality in addition to evidence-based school reforms.  We can’t be advocates for poor students and exclude policies that address poverty from our recommendations.

When deciding which school-based recommendations to make, we must remember that writers and policymakers all too often misunderstand education research.  Many reformers selectively highlight decontextualized research that supports their already-formed opinions.  Our students, on the other hand, depend on us to combat misleading claims by doing our due diligence, unveiling erroneous interpretations, and ensuring that sound data and accurate statistical analyses drive decision-making. They rely on us to adopt Nate Silver’s approach to baseball statistics: continuously ask questions, keep an open mind about potential answers, and conduct thorough statistical analyses to better understand reality.  They rely on us to distinguish statistical significance from real-world relevance.  As Silver writes about data in the information age more generally, education research “will produce progress – eventually.  How quickly it does, and whether we regress in the meantime, depends on us.”

Update: Gary Rubinstein and Bruce Baker (thanks for the heads up, Demian Godon) have similar orientations to education research – while we don’t always agree, I appreciate their approach to statistical analysis.

Update 2 (6/8/14): Matthew Di Carlo is an excellent read for anyone interested in thoughtful analysis of educational issues.

Update 3 (7/8/14): The Raj Chetty study linked above seems to have been modified – the pieces I quoted have disappeared.  Not sure when that happened, or why, but I’d love to hear an explanation from the authors and see a link to the original.


Filed under Education

Working Together for Educational Equity: What’s Missing from the TFA Debate

Teach For America (TFA) articles are all the rage right now.  Over the past month and a half, the four articles linked below have received particular attention:

“I Quit Teach for[sic] America” by Olivia Blanchard (The Atlantic, September 23)

“Remember the ‘I Quit Teach for[sic] America’ essay?  Here’s the counterpoint. ‘I stayed.’” by Maureen Downey and Tre Tennyson (The Atlanta-Journal Constitution, October 3)

“Why I Stopped Writing Recommendation Letters for Teach for[sic] America” by Catherine Michna (Slate, October 9)

“I Almost Quit Teach for[sic] America” by Eleanor Barkhorn (The Atlantic, October 14)

Though I generally hesitate to suggest that truth lies somewhere towards the middle of two extremes, the majority of both pro- and anti- TFA articles in this case contain inaccurate claims and arguments that unnecessarily pit people with the same goals against each other.  This post is my attempt to debunk the inaccuracies presented in these articles and identify the true benefits and drawbacks of TFA.  I also hope to identify how TFA and opponents of TFA can find common ground in their work for educational equity.

Before I make those arguments, a little bit about my educational background: I attended a traditional public school in a working class, mostly white neighborhood in southern New Jersey from first grade through sixth grade.  From seventh grade to twelfth grade, my parents sent me to Moorestown Friends School (MFS), a high-performing private Quaker school twenty-five minutes from my house.  I moved across the country to attend Stanford University for college and joined TFA right afterwards. San Jose Unified School District (SJUSD) paid TFA a few thousand dollars to hire me to teach at San Jose Community Day School (SJCDS), a school for students expelled from other schools for drug, weapon, violent, or other behavioral offenses.  I taught at SJCDS for three years, the second year of which I served as my school’s Site Representative for the San Jose Teachers Association (SJTA), the union that represents around 1,700 professional educators in SJUSD.  In my third year at SJCDS, I was appointed to the SJTA Executive Board.  I still serve as the SJTA Outreach Director in my new role as an instructional coach in SJUSD and also run professional development sessions for first and second year TFA corps members in San Jose.  I feel connected to both SJTA and TFA, though I tend to hear more compelling arguments from my colleagues at SJTA than I hear from the TFA staff members I know.  I hope you find this context valuable as I address the claims either directly made or implied in the above articles by answering the questions below:

Are TFA teachers prepared for their teaching assignments?

The short answer to this question is no.  As both Blanchard’s and Barkhorn’s articles note, TFA’s summer Institute, besides being short and often unrelated to a teacher’s upcoming teaching assignment, focuses far too much on theory and vision and far too little on tangible skills.  However, criticisms of TFA along these lines are, as another alum puts it, “a moot point” – nobody does a particularly good job preparing first-year teachers for assignments in low-income neighborhoods.  As I mentioned in an earlier blog post, nearly all the evidence suggests that there is very little, if any, difference, on average, between the standardized test results of students who have had TFA teachers and students who have had teachers with different backgrounds.  One of my friends, fellow 2010 TFA alum Connor O’Steen, summarized the problem with the “lack of preparation” critique in response to that post on Facebook:

…[W]hat does it mean when (at least) two years and 40-50,000 dollars of ed school has you performing ever so slightly worse on average than someone who’s done a six week crash course over a summer? Certainly you’d expect ed school–this long and formal educational experience which usually culminates in a Master’s degree–to add more value, more human capital? I think a lot of the criticism of TFA comes from stakeholders in the traditional ed pipeline who are made genuinely uncomfortable by the fact that all the training and apprenticeships seem to put people solely on par with beginning TFA corps members. Granted, there are more ways to measure achievement than standardized tests, but I don’t think many people would see percentile scores this low and think there’s *not* a problem here.

While I know several teachers (both within and outside of TFA) who believe their training contributed value to their teaching, I know many more, from a variety of preparation programs, who believe their training was practically useless.  Studies suggest corps members and other teachers have similar attitudes about their preparation and there’s no escaping the fact that there’s no well-established statistical correlation between time spent in a teacher preparation program and teacher effectiveness.  I proposed three possible explanations for this fact in my response to Connor’s post:

1. TFA and traditional teacher education systems are similarly ineffective at preparing teachers for placements in low-income schools.
2. TFA is less effective than traditional teacher education systems at training teachers but recruits better “talent” on average than those programs. One of the more interesting findings from the Mathematica study was the lack of correlation between a teacher’s undergraduate background and student achievement. But Dana Goldstein has an alternate theory (http://www.danagoldstein.net/…) that work ethic, a strong orientation to a mission, and intense focus on data and testing all explain the results.
3. TFA is more effective than traditional teacher education systems at training teachers but traditional teacher education systems recruit better “talent” than TFA. There are few people who make this argument.

Whichever of the above three options is most accurate, it’s hard to indict TFA for putting poorly prepared teachers in schools unless you indict every single teacher preparation program for the same fault.  I actually believe both traditional teacher preparation programs and TFA’s program (which is very similar in content to traditional programs) could improve significantly, but my point is that this critique is not valid when used to compare TFA to other programs (the only exception to this rule may be special education.  As one member of the SJTA Board pointed out to me, TFA teachers typically lack the legal knowledge necessary to succeed as special educators.  While two of the best special education teachers I know in SJUSD are TFA alums who have remained in the classroom well after their TFA commitment expired, I think that argument is valid).

Does the relatively short two-year commitment negatively impact students?

Most studies suggest that common sense is correct and teacher turnover is bad for students.  Though TFA placement regions have high turnover rates for first and second year teachers in general, attrition rates for TFA corps members are in the same ballpark during those two years and are significantly greater in subsequent years.  I personally believe TFA should not recommend corps members for positions for which there are other qualified candidates more likely to remain in education long-term.  In SJUSD, for example, TFA has placed a number of corps members at schools that are relatively low-poverty and easy-to-staff, which seems antithetical to the TFA mission.

At the same time, and contrary to Michna’s claims, extremely hard-to-staff positions with high turnover rates exist.  Also in SJUSD, which I believe to be one of the best large urban school districts in the country, we still have several open positions and are nearly three months into the school year.  TFA focuses primarily on these hard-to-staff positions and explicitly tries to select people unlikely to quit on commitments (they obviously failed in the case of Blanchard, but I think they’re pretty justified in excoriating her for her decision; TFA asks applicants outright in the final interview if they would quit under any circumstances and I find it hard to believe she answered this question honestly).  TFA in many places effectively addresses teacher shortages.

Do TFA teachers, on average, help level the playing field for children in low-income communities (do TFA teachers close the achievement gap)?

The short answer to this question is also no; as I mentioned above and discussed in an earlier post, TFA teachers seem to guide students to roughly equivalent standardized test results as all other teachers.  Those results are overwhelmingly poor compared to the results for affluent students.

Tennyson states in his article that, in his first year, “100 percent of [his] students passed the ELA exam and 90 percent were proficient or above in reading.  Down the hall, Donna Jenkins, the third corps member at [his] school, led [her] fifth graders to a 95 percent pass rate in math and 97 percent in science.”  These numbers sound great, but there are several possible explanations for them.  While it’s certainly possible that Tennyson and Jenkins were two of the best teachers in America during their first years of teaching and were able to single-handedly change the academic trajectories of their students in one year, I think it’s more likely that these statistics are misleading.  Perhaps their students weren’t all that disadvantaged before fifth grade.  Perhaps some out-of-school factors were contributing to the success of these students.  Perhaps these teacher-designed assessments don’t tell the whole story of student performance.  I’d bet a fair amount of money that Tennyson was at least a pretty good teacher based on what he wrote, but I’d bet even more money that the results he lists have a lot less to do with excellent teaching than he makes it sound.  We’d have to see his tests and get significantly more context and data about his students and classroom to know for sure, but while I’m sure he genuinely believes he can teach kids out of poverty, nearly all the externally verified data we have suggests that’s highly unlikely (again, check out my previous post here for a summary of research findings).  Even if Tennyson and Jenkins did work miracles with their students, they’d be incredibly unique within TFA.  There’s no reason to believe their success would be replicable on a large scale because, if it were, TFA would be teaching their best practices to all new teachers and getting results better than what they’re getting.

Again, none of that is to say TFA teachers (and other teachers, for that matter) can’t make a difference and change students’ lives – they definitely can and I know a number of people who were very good teachers as corps members – but many TFA teachers, like many charter networks, have a tendency to overstate their impact.  In the case of individual teachers, I’m inclined to believe the misleading information they present is unintentional, though I am less predisposed to think that misinformation coming from organizational leadership is so innocuous.

How do TFA’s leadership development, political work and alignment, and brand affect low-income students?

TFA’s mission includes developing leaders who work “to ensure that all children can receive an excellent education” outside of the classroom.  Critics sometimes forget this purpose.  The hope is that even people who join TFA solely to build their resumes will see the obstacles low-income children face during their two-year stints in the corps and will then advocate for those children long after they have left the teaching profession for their careers in law, medicine, or business.  I believe this goal is admirable.  At the same time, however, TFA’s brand often develops leaders and political outcomes that actively harm students in poverty.

Blanchard formulates a pretty accurate summary of the problem.  Pervading TFA is

…the unspoken logic that current, non-TFA teachers and schools are failing at the task of closing the achievement gap, through some combination of apathy or incompetence. Although TFA seminars and presentations never explicitly accuse educators of either, the implication is strong within the program’s very structure: recruit high-achieving college students, train them over the summer, and send them into America’s lowest-performing schools to make things right. The subtext is clear: Only you can fix what others have screwed up.

Her analysis gels with my TFA experience – most people within TFA are hesitant to explicitly blame the achievement gap on bad teachers and schools, but most also perpetuate a negative narrative about public education at least implicitly.  When Blanchard asked a TFA spokesperson about TFA’s views on traditionally trained teachers, she received the response that “[i]f anything, teachers are victims of more structural problems: inequitable funding; inadequate systems of training and supporting teachers; the absence of strong school and district leadership.”  Notice that this response still implies that teachers aren’t doing a very good job; it just blames the problem on inequitable school funding, poor training, and bad leadership instead of laying the proximate culpability at teachers’ feet.  I really like nearly everyone I know on TFA staff, but I have never gotten a single one of them to admit the well-established fact that in-school factors explain, at most, 33% of student achievement.

This mindset – that teachers and schools have nearly total control over student outcomes – has two really problematic implications.  The first implication is that schools that serve low-performing students are bad schools, that some combination of the teachers and leadership at those schools are doing a terrible job that someone else could do significantly better and mass firings and closings are warranted.  The second implication is that we can focus our political energy away from solving poverty directly; if education can fix poverty, as Teach For America suggests, poor children can succeed without a drastic overhaul of society.  School-based reforms are all we need.  The reality, though, is that education cannot solve society’s problems.  Education can make a difference, but the main reasons low-income students perform poorly compared to their affluent peers have nothing to do with school and everything to do with the gamut of obstacles they face from birth.  When you break down school performance in the US by free and reduced-price lunch rate before comparing it to school performance internationally, “low-performing” US schools with high numbers of poor students have higher test scores than schools in countries with similar concentrations of disadvantage.

The best critique of Teach For America, in my opinion, is based on political affiliations and impact.  The organization produces a large number of influential alumni who support the expansion of charter schools, changes to teacher employment law, and making student standardized test scores increasingly more important in teacher and school evaluations.  There is, unfortunately, very little evidence that these reforms help poor students.

Yet a lot of politicians who couldn’t care less about poor kids rally around TFA’s “unspoken logic.”  Chris Christie, the governor of New Jersey, is a prime example.  Christie uses the cover of an education “reform” agenda – he promotes closing schools, opening more charters, eliminating tenure, and introducing “merit pay” based on student test score data – to hide the fact that tax cuts for the rich are a higher priority for him than poor students eating breakfast or lunch (see this link for a more extensive list of Christie’s cuts to education).  TFA obviously doesn’t support cutting school breakfast money, but the concept that educator and school-related changes are most important for poor students enables people like Christie to further disadvantage low-income kids, bust unions, enrich the wealthy even further, and receive credit for supposedly student-oriented ideas at the same time.

How can TFA, teachers unions, and other proponents of opportunities for low-income children work together for educational equity?

In the end, most people within Teach For America and most other people working in education have very similar goals; to use the words of the San Jose Teachers Association, most of us want to “educate, inspire, and change lives through public education.”  As I recently discussed with my older sister, the biggest shame about the TFA debate is that, while people who care about kids are arguing with each other about teacher and school quality, people like Christie are exacerbating poverty and directly destroying the lives of low-income students.

So what should TFA and people like Michna and Blanchard do differently to better support their stated missions?

First, and most importantly, TFA should acknowledge that the achievement gap is caused by poverty, not by bad teachers and schools.  School-related changes alone can address only some of poverty’s symptoms.   TFA should thus publicly advocate for policies that address poverty, policies like single-payer health care, increased taxes on the wealthy, wraparound services for low-income kids, and more environmentally and socially responsible food standards.  This advocacy will lose TFA money – I highly doubt Arthur Rock and many of Teach For America’s “National Corporate Partners, Sponsors, Supporters, and Investors” will continue to support the organization if TFA begins to promote reducing income inequality – but if TFA is really “students first,” TFA will worry about that funding later and start working now for the change most likely to actually benefit poor students.  Quality teaching matters, but what matters more is the overall environment in which the student grows up and lives.

Second, everyone in education should promote further research on the link between various reform ideas and student outcomes.  Until other reform ideas are supported by strong evidence, however, we should focus on the school-related change everyone agrees about: teacher support.  Though more study and experimentation is needed, research suggests that teachers can benefit greatly from ongoing professional development in the form of one-on-one coaching.  TFA already has a structure for coaching corps members and, when it comes to TFA teachers, believes in development instead of dismissal.  Many traditional school districts, like SJUSD, have coaching models as well for the same purpose.  I believe directing energy and policy focus towards making these systems more effective and aligned with this purpose should be the primary goal of education reform.  Focusing on evidence-based support first and other evidence-based reforms second is both the ethical way to treat the teaching workforce and a way to encourage the development of strong teachers interested in remaining in the profession.

At the same time, educators must consider additional reforms pending future research.  While student test scores, for example, are not yet a valid or reliable indicator of effectiveness, we should continue to study them.  Teachers unions can get behind that idea; unions only oppose linking test scores to teacher evaluations because doing so currently provides an inaccurate picture of a teacher’s effectiveness.  Unions believe in robust evaluation systems that more accurately assess teachers’ contributions.  If empowered by a change in the education narrative and given adequate support, I also believe the vast majority of teachers would buy into respectful, evidence-based discussions about revised layoff procedures and expedited dismissal processes for the small fraction of teachers not doing their jobs.  Those discussions present a problem now mainly because reformers like Michelle Rhee continue to promote unproven reforms and focus on teacher blame and dismissal rather than substantive, constructive criticism and support.

In general, critics of TFA should stop harping on illegitimate complaints about TFA teachers’ lack of preparedness.  A lot of TFA teachers turn out to be very good teachers, even in their first years, and targeting well-intentioned, hardworking, and talented individuals for the problems of the larger organization is counterproductive.  Teachers should also remember that we do make a difference – though we can’t close the achievement gap, we can markedly improve our students’ lives.  And TFA should stop sending the sometimes explicit and frequently implicit message to its corps members and the general public that educational changes alone can fix poverty, since they can’t.

All educational stakeholders should be able to agree that we must continuously improve our schools and practices to better serve our students.  But to truly put our low-income kids first, TFA and other stakeholders must simultaneously band together with teachers unions and advocate for social justice policies that address economic inequality.

Note: Thanks to Jack Schneider, this post was updated to include the most recent data on teacher attitudes about their preparation programs.

Update 2 (2/21/14): The second-to-last paragraph of this piece originally referred to critics of TFA as “the anti-reform crowd.”  This reference has been changed because of a thoughtful comment by Serge Vartanov.

Update 3 (3/2/14): The text above originally included a parenthetical aside that referenced a flawed study on teacher preparation programs.  Thank you to Demian Godon for prompting me to reexamine it.

Update 4 (9/26/15): In reading back through this post, I realized that the text originally said the following:

“When you break down school performance in the US by poverty rate before comparing it to school performance internationally, ‘low-performing’ US schools with high poverty rates do better than schools in every other country with similar rates.”

The link, however, does not break down US schools by the official poverty rate, but by the percent of students who receive free and reduced-price lunch.  I have updated the text to more accurately reflect this fact, though it’s worth noting that the official poverty rate in the US is very low and that the percent of students receiving free and reduced-price lunches is probably a better proxy for disadvantage.


Filed under Education

TFA Effectiveness

Several people have sent me articles discussing Mathematica’s recent research study that examined Teach For America (TFA) math teacher effectiveness.  This study is significant because, to my knowledge, it is the first large-scale study on TFA to randomly assign students to classrooms.  Its experimental design provides fairly convincing support for the idea that TFA teachers’ students perform no worse than the students of non-TFA teachers at TFA placement schools.  But this finding is consistent with the findings of previous research and does not support the assertion that Teach For America teachers can close the achievement gap.

Anyone who continues to argue that TFA teachers yield worse educational outcomes than other teachers (generally citing pretty old research and ignoring the much larger body of research that contradicts that claim) are just plain wrong.  While there are some methodological concerns with recent studies, enough evidence exists for me to state confidently that TFA teachers, on average, do not harm student achievement.  At the same time, TFA and its proponents must also stop using misleading data and insisting that studies like this one prove more than they actually do.  Despite articles’ claims, the new Mathematica research does not suggest that TFA teachers’ students outperform non-TFA teachers’ students in a meaningful way.

The study showed a difference between TFA teachers and all comparison teachers of 7% of one standard deviation.  To put that number in context, a difference of 7% of one standard deviation in home runs between two baseball players in 2012 would be a difference of less than one home run over the course of the entire 162-game season.  Or, if you aren’t a baseball fan, a difference of 7% of one standard deviation between two students on the math section of the SAT in 2012 was equivalent to a difference of less than one correctly answered question.  The authors of the Mathematica study and just about every article quoting the study claim 7% of one standard deviation in this context is equivalent to 2.6 months of learning, using this 2007 research paper as justification, but that number is invalid and based on an inappropriately applied heuristic.  The average student in a non-TFA classroom scored in the 27th percentile on the tests administered while the average student in a TFA classroom scored in the 30th percentile; moving from the 27th percentile on a test to the 30th percentile does not represent, on average, 2.6 months of learning.  Furthermore, 40% of classrooms with TFA teachers scored lower than comparison classrooms taught by non-TFA teachers.  The study’s results were statistically significant, sure, but the advantage they show for TFA teachers is remarkably slight at best.

To me, the most important takeaway from the Mathematica study is that students at TFA placement schools, in general, perform terribly on standardized tests no matter who happens to be teaching them.  The reasons for that fact, as I alluded to in my last post, have a lot less to do with teaching and school quality than reformers would have us believe.  Most teachers, whether from TFA or any other program, want to help kids learn and are working hard towards that end most of the time.  But despite our best efforts, in-school reforms alone do little to impact the achievement gap.  The Mathematica study suggests that educators can only succeed if we simultaneously address economic inequality and other outside-of-school factors that disadvantage low-income students. I’d like to see critics and proponents of TFA alike stop quibbling about marginal improvements on standardized tests and start concentrating on the larger-scale advocacy that can really make a difference.

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