unexpected perverse impacts of universal kindergarten

Elizabeth Cascio, an economist at Dartmouth, just published a study on the impact of kindergarten becoming universal in the United States because of state funding in the 1960s and 1970s.

My results indicate that state funding of universal kindergarten had no discernible impact on many of the long-term outcomes desired by policymakers, including grade retention, public assistance receipt, employment, and earnings. White children were 2.5 percent less likely to be high school dropouts and 22 percent less likely to be incarcerated or otherwise institutionalized as adults following state funding initiatives, but no other effects could be discerned. Also, I find no positive effects for African Americans, despite comparable increases in their enrollment in public kindergartens after implementation of the initiatives. These findings suggest that even large investments in universal early-childhood education programs do not necessarily yield clear benefits, especially for more disadvantaged students.

How did she measure this?

I take advantage of the staggered introduction of state funding for kindergarten from the 1960s forward, combined with the fact that children generally attend kindergarten at age five. More specifically, I calculate the average difference in outcomes between individuals who were age five before the introduction of kindergarten funding and children born in the same state who were five years old after the initiative was introduced. I further adjust these comparisons to take into account the fact that kindergarten enrollment was increasing gradually in many states prior to the adoption of state funding.

Why didn’t the program benefit blacks?

She proposes three hypotheses, but the “first of these hypotheses receives the most support in the available data”: “Kindergarten funding disproportionately drew African Americans out of higher-quality education settings.” Specifically, “the introduction of state funding for kindergarten prompted a reduction in Head Start participation among African Americans.”

So universal kindergarten may have actually pulled blacks out of better programs, into lower quality universal programs!
Continue reading “unexpected perverse impacts of universal kindergarten”

choice versus circumstance in Tanzanian pre-schools

An article on early child development in Tanzania’s newspaper This Day ends with the following analysis

Usually, where there is need, there is opportunity. Realising the big demand for preschool education in Tanzania, many people are capitalising more on this situation to do business rather than provide good early childhood education. Many of the so-called preschools and daycare centres are unfurnished, staffed with unqualified teachers and located in run-down buildings without the necessary sanitation facilities. The prime concern of their private operators is money. Only a few preschools, largely run by religious institutions, offer a high-quality learning curriculum that helps cultivate in children skills for further education. Their standards have led to improved achievements by their former pupils.

But many other preschools being operated in private home grounds and backwoods simply cannot push forward the frontiers of a child’s learning. Yet, these are the places where the majority of low-income families crowd their kids because the cost is low.

The poor normally don’t realise that cheap things eventually cost double.

This strikes me as fundamentally contradictory. The final statement suggests that the poor are to blame, that they put their children in low-quality pre-schools because they fail to realize the poor long-term returns, when in fact the preceding observations suggest that very few options are even available. Would poor families be willing to pay more if higher quality institutions were available? Perhaps! Let’s give them a chance and find out! This echoes what I’ve been reading in Devi Sridhar’s The Battle Against Hunger: Choice, Circumstance, and the World Bank, which explores a nutrition program that focuses entirely on choice and insufficiently on the circumstances around the choice set.

book review of Making the Grades: My Misadventures in the Standardized Testing Industry, by Todd Farley

a fun memoir but an imperfect critique

Over 15 years, Todd Farley worked throughout the standardized testing industry. He worked as a lowly scorer, a table leader (supervising the lowly scorers), a project manager, an item writer, some kind of administrator / analyst at a testing company headquarters, and a consultant. He worked for Educational Testing Service (ETS), Pearson, National Computer Systems, and others. He worked on the California High School Exit Exam, the SAT, the Nation’s Report Card (NAEP), and myriad others. From that wealth of experience, Farley draws hilarious and cringe-worthy anecdote after another, of scorers for reading tests that don’t speak English, of blatant meddling with reliability statistics, et cetera, et cetera.

I recommend the book: It was consistently entertaining, and some of the critiques are clearly important, such as the ease with which testing companies can doctor their statistics and the number of poorly qualified scorers who are grading your child’s SAT.

However, several of Farley’s critiques are inherent to any testing, including classroom testing. His first experience as a scorer describes the challenge of grading a question in which fourth graders had to read an article about bicycle safety and then draw a poster to highlight bicycle safety rules. Unsurprisingly, many of the posters were difficult to interpret. As any teacher will agree, this is a problem with any testing, not standardized testing.

At the end of the book, Farley recommends we trust the evaluations of classroom teachers (Mrs. White and Mr. Reyes are his examples) rather than the standardized evaluations. This, however, is of little use for a university admissions officer who must choose between a student from Mrs. White’s class and a student from Mr. Reyes’s class. In addition, Farley argues that teachers were horrible scorers, in part because they “make huge leaps when reading the student responses, convinced they knew what a student was saying even if that didn’t match the words on the page” (236).

Many of the critiques, that enumerators are very poorly qualified or that testing companies easily manipulate statistics to hide low-quality scoring, are issues of oversight. That implies that there may be no way America can get the testing it wants for the price it currently pays. Perhaps this means less testing, better done, and the development of monitoring systems which better guard against cheating. It probably means higher standards for scorers, which means higher wages for scorers. (Insufficient supply of scorers is a recurrent problem, leading Farley multiple times to be fired for failing to pass scoring tests and then re-hired within a day after a lowering of standards.) Or when a testing company refuses to produce new, better test items because their contract says they don’t have it: That signals the need for better contracts.

None of these suggest that standardized testing should be tossed out entirely. There will always be some useful information in student evaluations and some random noise (see note), whether those are classroom evaluations or “standardized” evaluations. The focus needs to be to increase the information and recognize (and take action) where the noise is so great that the evaluation will be worthless.

Overall, this is an important book that will hopefully be read by education policymakers. But I hope they will use it to improve the system, not to toss it out the window.

Note: As long as different items are scored by different scorers (which they are), the fact that some scorers are too harsh and some are too easy should wash out in comparisons across large samples. For example, harsh scorers would lower scores in both great schools and good schools, so the test results would still show that great schools are doing better than good schools. We may not have that confidence when comparing two individual students given the smaller sample size.

All that being said, let me add a couple of other less central critiques:

+ Several times Farley suggests that a fundamental issue is that for-profit companies are doing this work, rather than educators with children’s best interests at heart. And yet, the educators who appear in the story seem no more capable at evaluating than the for-profit companies.

+ I was disappointed at how Farley carries his own ignorance as a bit of a point of pride. For example, several times he refers to the psychometricians (statisticians – in this context – specializing in analyzing test statistics) as imposing counterproductive rules without ever taking the trouble to examine what psychometricians do or why it’s part of the process. Certainly statistics shouldn’t overrule good sense (and sometimes it unfortunately does), but it also can help reveal result-manipulating test evaluators (like Farley and his colleagues).

Objectionable content? The book has one mention of the title of a pornographic movie plus a light smattering of strong language.

my dubious popularity among African students

In March of 2008, I published a short review of the Senegalese classic novel, The Beggars’ Strike, by Aminata Sow Fall.  A number of the comments on that post have suggested that the book is assigned reading somewhere:

  • i am a student i realy realy enjoy the play (feb 2009)
  • Hi, please i need urgent help on my project topic IRONY OF FATE IN AMINATA SOWE FALL “BEGGAR’S STRIKE”. Will be very happy if anyone can help me with relevant materials to aid me in writing my final year project. Thanks alot!!!!!!!!. (may 2009)
  • please i urgently need help on writing on discussing the general setting of the beggar’s strike in relation to the writer’s handling of the theme. thanks (july 2009)
  • can i please know how dose the setting of the book relates to its theme? (july 2009)
  • hi, i need the summery of the novel the beggars strike please kindly send it to my mail box which is –. thanks in anticipation. (july 2009)
  • sir the book has really tells us africa background, however sir i want to know the theme of oppression in the novel (july 2009)
  • I love this novel but i need to know if it is totaly a satire (nov 2009)
  • pls can u summarize the entire book (dec 2009)

and much more!  I only wish I could be of more use.  Maybe I could post a couple of sample term papers based on the book?  Alas, mine is a paltry little review…