Archive for Education

the case AGAINST investing in young children

I read a lot of evidence in favor of investing in young children.  For example, the following from Nobel laureate James Heckman and co-author Masterov:

We argue that, on productivity grounds, it makes sense to invest in young children from disadvantaged environments. Substantial evidence shows that these children are more likely to commit crime, have out-of-wedlock births and drop out of school. Early interventions that partially remediate the effects of adverse environments can reverse some of the harm of disadvantage and have a high economic return. They benefit not only the children themselves, but also their children, as well as society at large.

So I was refreshed today to finally see the other side of the coin.  I’d say, both by the gravitas of the author and the power of the argument, it pretty much balances out the argument:

My problem is the children themselves. They may be cute, but they are here to replace us. Need proof? Ever catch one walking around in your shoes? That’s a chilling moment, like finding an empty body snatcher pod in the basement.

“But children are our future!” Yes, but does that not also mean that we are their past? I don’t understand why we’re helping them. You don’t see union factory workers throwing a benefit for robots. (from I Am America, by Stephon Colbert, p10)

Quod Erat Demonstrandum

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more evidence that parents have limited skill at judging quality of early child education centers

Earlier I highlighted a study that shows parents in Germany and the USA aren’t great at judging the quality of their early child education centers. 

Here is evidence showing the same for Rio de Janeiro.  The vertical axis shows parent evaluation, and the horizontal axis shows an objective measure.  As you can see, parents think all the daycare centers are about the same.

from Barros R, Carvalho M, Franco S, Mendonça R, Rosalém A. 2010. “A short-term cost-effectiveness evaluation of better quality daycare centers.” Working Paper.



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parents think it’s a good school! they’re wrong!

Just read this nice piece of research.  I can’t find but believe I saw a similar effect described for households in India. 

This study compares how parents in Germany and the USA perceive the quality of ECE services their preschoolers receive in the two different cultures and ECE systems existing in the countries. The sample included 2,407 parents in the USA and 392 in Germany. Classroom quality was assessed by trained observers using the USA and German versions of the Early Childhood Environment Rating Scale (ECERS). Parents’ perceptions of ECE programs were measured with a parent questionnaire (ECERSPQ), which is an adaptation of the ECERS. Findings show that in both countries … parents assign substantially higher quality scores to their children’s classrooms than do trained observers, and parent quality assessments are influenced by the relative importance they attribute to aspects of quality…

from Cryer, Tietze, and Wessels, Parents’ perceptions of their children’s child care: a cross-national comparison, 2002

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legos used to teach in Singaporean kindergartens

from Singapore News

Two PCF kindergartens experiment with LEGO products for teaching

By S Ramesh, Channel NewsAsia | Posted: 06 March 2010 1949 hrs

SINGAPORE : Two kindergartens under the PAP Community Foundation (PCF) are piloting the use of teaching materials from LEGO.

The aim is to raise the quality of early childhood education.  Launching the programme at Marine Parade on Saturday was Senior Minister Goh Chok Tong, who is also the area’s MP.  Capitalising on pre-schoolers’ curiosity and enthusiasm about the world around them, the PCF centres in Marine Parade and Chua Chu Kang have started teaching programmes with LEGO materials.  Karen Goh Meng Choo, a parent, said: “Helping the students to be more creative, develop their brains, mathematics in all ways…LEGO is good for all the children.”

PCF said LEGO is being used in the teaching of English, Mathematics and Science, and the children achieve more than just learning.

Manpower Minister Gan Kim Yong, who is also chairman of the PCF Executive Committee, said: “Through LEGO, we also teach them soft skills like socialising, as well as creativity, because to build a good project, the children have to collaborate with one another so that they can build the project together. So through the LEGO play, we encourage teamwork.”

Children from low-income families will not be left out, assured Mr Gan. He said there are many schemes to help them join in these specialised programmes.  [and more in the article]

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vocabulary DVDs may make your baby dumber

In various parts of the world, integrating technology with education is a new and exciting trend, trying to incorporate computers into the classroom, using DVDs to help when teachers are poorly qualified, etc. However, we might want to hold off on the DVDs until the children are a little bit older, from a randomized trial study published Monday in the Archives of Pediatrics & Adolescent Medicine, by Rebekah Richert and three other people.

This, from a nice summary of the work in the Guardian:

In the new study, researchers focused on the Baby Wordsworth DVD, which is part of the Baby Einstein series. It uses puppets, videos of children and parents, pictures, sign language, text, and speech to help children learn 30 words for common objects and rooms in the house. The researchers wanted to find out if regularly watching this type of DVD actually helps young children develop their language skills.

Children who watched the DVD regularly were no more likely to know the words featured in the DVD than those who didn’t watch it.

The study included 96 children aged 12 months to 24 months, half of whom watched the DVD regularly for six weeks. Parents were told to use the DVD as they would any other type of children’s media, giving them leeway to decide whether they would watch the DVD with their child.

Every couple of weeks, the researchers tested both groups’ knowledge of the 30 words featured in the DVD by showing the children pairs of pictures and asking them to point to the one showing the word. The parents were also interviewed about their child’s use and understanding of these words.

At the end of the study, there were no differences between the groups in the numbers of words understood, words said, or pictures identified.

The researchers found no difference between the DVD and no-DVD groups in overall language skills at the end of the study. They also found no link between children’s language skills and how often they watched DVDs in general. However, they did find that children who had first watched a Baby Einstein DVD at a very young age lagged slightly in their language development.

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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!
Read the rest of this entry »

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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.

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strangest early child education text i’ve seen…

Doing Foucault in Early Childhood Studies: Applying Post-Structural Ideas, by Glenda Mac Naughton

My favorite quote from the product description:

The book covers such issues as: becoming post-structurally reflective about truth mapping classroom meanings tactics of rhizoanalysis becoming again in critically-knowing communities.

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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.

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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…

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