Limning Minnesota: They were number two at math!

THURSDAY, OCTOBER 31, 2013

Or so Ripley said: Was Minnesota number two when it came to the teaching of math?

That’s what Amanda Ripley says in her widely praised book, The Smartest Kids in the World. When it came to the teaching of math, Minnesota was our second-best state.

And not only that! The inspiring state had made remarkable improvement over a twelve-year time span. Once again, we’ll be working from this basic text:
RIPLEY (page 72): Of the three American students I followed, Eric was the only one who did not loathe math. Coincidence or not, Eric’s home state of Minnesota was one of only two states that came close to achieving world-class math performance. Roughly speaking, Minnesota ranked below just a dozen other countries (including Canada, Korea and Finland) in math proficiency; only Massachusetts did better in the United States.

When Eric arrived in Korea, he had a solid math background. There were lots of reasons for this: One might have been that his timing was good. Had he been born earlier, things might have turned out different.

In 1995, Minnesota fourth graders placed below average for the United States on an international math test. Despite being a mostly white, middle-class state, Minnesota was not doing well in math. When Eric started kindergarten two years later, however, the state had smarter and more focused math standards. When he was eleven, Minnesota updated those standards again, with an eye toward international benchmarks. By the time he went to high school, his peers were scoring well above average for the United States and much of the world. In 2007, Minnesota elementary students rocked a major international math test, performing at about the same level as kids in Japan.

What was Minnesota doing that other states were not?
Ripley seems to make these statements:

As of (roughly) 2007, Minnesota was second only to Massachusetts in the teaching of math. According to a major international math test, the state had made remarkable improvement over a twelve-year period.

According to Ripley, Minnesota was doing something that other states were not.

Those claims are very hard to support. To the extent that they’re technically accurate, they’re highly misleading. Here’s why:

Start with Minnesota and Massachusetts. In Ripley’s text, she doesn’t cite a basis for saying that Minnesota trailed only Massachusetts in math proficiency.

In her endnotes, Ripley cites this perfectly valid study by a team of professors. If you scroll to pages 8-9, you’ll see the graphic which is her source.

Among the fifty states, that graphic does show Minnesota ranking below only Massachusetts in the percentage of kids achieving math proficiency. The graphic does include other nations, including the ones Ripley names.

Here’s the rest of the story:

As the text of the study explains, the rankings of the fifty states on that graphic are actually based on their scores in Grade 8 math on the 2007 NAEP. We’re no longer dealing with the TIMSS. We’re now dealing with the NAEP, our major domestic testing program.

On the 2007 Grade 8 NAEP, Minnesota did have the second highest percentage of kids scoring proficient or better among the fifty states. But there’s no mystery about how Minnesota did that:

In large part, Minnesota achieved that ranking because it had lots of white kids.

More specifically, Minnesota had a higher percentage of white kids than other states which actually got better scores, once we disaggregate. Minnesota ranked above those states because it was heavily white.

Consider the way Minnesota compared to Texas on that year’s NAEP math test. Below, you see the way the two states’ average scores break down, once you disaggregate.

Note: On the NAEP scale, ten points is often said to be roughly equal to one academic year. For all NAEP data, start here:
2007 NAEP, Grade 8 math, Minnesota v Texas
White students: Texas 300, Minnesota 297
Black students: Texas 271, Minnesota 260
Hispanic students: Texas 277, Minnesota 269
Among all three major student groups, Texas outscored Minnesota. Minnesota ranked higher than Texas on the graphic Ripley cites because it had a much higher percentage of white kids.

To quote Ripley, “What was Minnesota doing that [Texas] was not?” Simple! It was teaching many more white kids! But then, the same pattern obtains when we compare Minnesota to Maryland and New Jersey:
2007 NAEP, Grade 8 math, Minnesota v Maryland
White students: Maryland 300, Minnesota 297
Black students: Maryland 265, Minnesota 260
Hispanic students: Maryland 272, Minnesota 269

2007 NAEP, Grade 8 math, Minnesota v New Jersey
White students: New Jersey 298, Minnesota 297
Black students: New Jersey 264, Minnesota 260
Hispanic students: New Jersey 271, Minnesota 269
Massachusetts also outscored Minnesota among all three student groups.

We don’t mean this as a slander against Minnesota, which actually is one of our higher-scoring states. It simply wasn’t the second best state when it came to the teaching of math.

In these charts, Minnesota is being outscored among all major groups by several other high-scoring states. Minnesota only ranked second on Ripley’s graphic because it had a higher percentage of white students than most of these other states did.

Let’s be clear: Minnesota wasn’t even the second best state when it came to teaching math to white kids. Again, we don’t mean this as a criticism. But Minnesota’s white students only ranked fifth among the fifty states on that year’s Grade 8 NAEP.

Fifth out of fifty is pretty darn good! But it’s nothing like what Ripley seemed to suggest:
Grade 8 math, 2007 NAEP, white students
Massachusetts 305
Texas 300
Maryland 300
New Jersey 298
Minnesota 297
Virginia 296
Kansas 295
North Dakota 295
North Carolina 295
[…]
United States 290
Fifth out of fifty wasn’t half bad! Unfortunately, Minnesota’s black and Hispanic students ranked less well that year. Or don’t we care about them?
Grade 8 math, 2007 NAEP, black students
Oregon 272
Colorado 272
Texas 271
Alaska 271
Virginia 268
Kansas 267
Arizona 266
North Carolina 266
South Carolina 265
Delaware 265
Maryland 265
Massachusetts 264
Washington 264
New Mexico 264
New Jersey 264
Georgia 261
Minnesota 260
Florida 259
United States 259

Grade 8 math, 2007 NAEP, Hispanic students
Texas 277
Ohio 276
Virginia 275
Alaska 274
Wyoming 274
North Carolina 273
Maryland 272
South Carolina 272
New Jersey 271
Missouri 270
Florida 270
Massachusetts 270
South Dakota 269
Minnesota 269
Kansas 269
[…]
United States 264
Minnesota’s black students ranked 17th out of 41 states which had a sufficient sample of students. The state’s Hispanic students ranked 14th out of 42 states.

This is not a slander against Minnesota. Having said that, let us also say this: the state did less well at the Grade 4 level. Here you see the rankings the state achieved among the three major groups:
Grade 4 math, 2007 NAEP
Minnesota’s rankings among the fifty states
White students: 6th out of 50 states
Black students: 22nd out of 44 states with a sufficient sample
Hispanic students: 25th out of 45 states
The graphic Ripley used as her source was based on the 2007 NAEP. On that test, Minnesota’s white students scored quite well as compared to their peers in the other states.

That said, the state’s black and Hispanic students scored much less well as compared to their peers. Minnesota only ranked second overall in Grade 8 because it had many fewer minority kids than quite a few other states.

This is not an indictment of Minnesota. It’s an indictment of everyone who played a part in Ripley’s mal-composed book.

It’s an indictment of the upper-class social clubs which present themselves as “think tanks.” It’s an indictment of the education writers who heaped praise on this book—often embellishing Ripley’s embellishments as they penned their fawning reviews.

Ripley is good at human interest writing. She seems to know very little about public schools or about how to read test scores.

To the social clubs which call themselves think tanks, this type of obvious incompetence doesn’t seem to matter. They have a very high sense of entitlement—a sense that they get to do as they please. They also seem to have a strong desire to please the elites which hand them their big piles of cash.

You live in a post-journalistic world. It’s a world of expense accounts, international junkets and novels—“adventure stories.”

Tomorrow: How much did Minnesota improve? Where do things stand today?

68 comments:

  1. What? Even more to come about test scores in Minnesota?

    This is more exciting than the final episode of Breaking Bad.

    ReplyDelete
    Replies
    1. And over a month longer.

      Delete
  2. Ripley was possibly thinking of the performance of Minnesota's fourth graders on the 2007 TIMSS math test, which showed a remarkable rise (from 1995), according to Professor William Schmidt of U of Michigan, who devised the state's math curriculum. (Minnesota's 8th grade gain in math was not statistically significant, according to professor Schmidt.) He writes that in 2007 fourth grade teachers in Minnesota reported spending 60 percent more time on arithmetic than they did in 1995.

    Schmitt's report mentioning Minnesota's fourth grade "rocking" performacne (in Ripley's term) math scores was widely cited (by Diane Ravitch and Malcolm Gladwell, for example). The fact is that many countries, including the USA showed rises in math scores, however, since 1995, as teachers devoted more time to the subject. Italy, for example, went up 15 points on the PISA, despite being portrayed by Ripley (via Hanushek) as having plummeting scores.

    Additionally, it is not clear what, if anything, Schmidt's new elementary Minnesota math curriculum has to with Eric, the very privileged, above-average white US teenager whom Ripley interviewed doing well in Korea.

    Schmidt is now consulting with Common Core and is recommending that "rigor" requires that algebra now begin in 8th grade instead of 9th. How is that going, I wonder?

    ReplyDelete
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  4. The problem is that Ripley doesn't say which test Minnesota "rocked". The chart referred to in her footnotes is NEAP, which is not an "international test." The International test in which Minnesota participated would have been TIMSS. Three people wrote about how Minnesota did "rock" that one", Ravitch, Gladwell, and Schmidt, author of the state curriculum that Ripley praises. However, in 2007 Minnesota "rocked" only its fourth grade scores, not its eighth grade ones. The fourth grade scores went up, especially with regard to the 1995 results, when Minnesota evidently didn't use to teach much math in fourth grade. There is considerable conflation/confusion going on here.

    ReplyDelete
  5. As far as numerical rankings, since they keep adding new "countries" like Shanghai (not a country at all) to the list, it is meaningless to say that the USA's ranking went down.

    Anyway, it shows that there are lies, damn lies, and statistics, which our semi-criminal "reformer" con-people are expert in manipulating.

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    وذلك من خلال استخدام احدث الالات واقوى المواد المنظفه والمعطره وعلى ايدى فنيين متخصصين فنحن الافضل والاجدر فلا تبحث كثيرا
    شركة تنظيف سجاد وموكيت بالدمام
    فى شركة الكمال نستخدم افضل الالات التى تقوم بانهاء العمل بسرعه ودقه مع استخدام مواد فتاكه وفعاله فى القضاء على الدهون والبقع فى ثوانى معدوده مع ارسال
    فريق لديه الخبره فى التعامل مع اثاث ومحتويات البيت والمهاره فى اتقان العمل فنحن نتكلم عن شركة الكمال لتنظيف الشامل داخل وخارج البيت
    شركة تنظيف بالدمام
    انت تحتاج الى شركة تنظيف للخزانات فشركة الكمال تعمل على التخلص من الرواسب والطفيليات وتعقيم الخزان للحصول
    على مياه نظيفة وذلك من خلال استخدام احدث الالات والمواد المنظفة الامنة على ايدى خبراء متخصصين مع تصليح العيوب فى الخزانات ان وجدت
    شركة تنظيف خزانات بالدمام
    فشركتنا تضمن
    شركتنا تضمن لك التخلص من الحشرات نهائيا ودون عوده من خلال مراقبتها ومعرفة اماكن تجممها والمبيد الخاص بها مع استخدام الات تصل الى اضيق وابعد الاماكن
    فلا تقلق عزيزى العميل مع تواجد شركة الكمال لمكافحة الحشرات بالدمام لما تمتلك من مصداقيه وثقه من عملائها الكرام
    شركة مكافحة حشرات بالدمام
    معنا فى شركة الكمال ستحصل على ماهو جديد فى كافة مجالات التنظيف وكشف التسربات ومكافحة الحشرات

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  40. شركة ركن الفرسان لخدمات التنظيف الشامل والخاص مثل تنظيف السجاد فقط او المجلس فقط ونتميز بوجود فريق خاص لكل خدمة من خدماتنا فنحن نعمل
    على تنظيف وتلميع وتطهير وتعطير جميع اجزاء البيت باحدث الالات والمعدات المتطوره الخاصه بمجال التنظيف مع استعمال المواد الامنه ذات التاثير
    الفعال فى القضاء على الاوساخ والدهون فنحن شركه معتمده غير باقى الشركات العابره والتى تقوم باستغلال العميل مع عدم المقدره على اتقان العمل كشركتنا
    شركة تنظيف بالقطيف
    دائما فى جميع احتياجاتنا نبحث عن التخصص لنحصل على الافضل لذلك اذا وجدت لديك مشكله تسريب المياه قم باختيار شركة ركن الفرسان لحتوائها على
    افضل وامهر فريق عمل متخصص لديه الدراسات والخبره مع استعمال احدث الاجهزه الالكترونيه الحديثه التى لا تحتمل الخطا فى تحديد مكان التسريب بدقه
    ثم العمل على حل المشكله واعادة الحوائط كما كانت وهذا الالات تسهل العمل وتتقنه وهذا على خلاف الشركات التى تعمل على تكسير الحوائط لمعرفة اماكن التسريب
    شركة كشف تسربات المياه بالقطيف
    تواجد الحشرات فى البيت تعتبر كارثه حقيقيه لانها تعمل على انتشار الجراثيم والامراض مع عدم الارتياح فى بيتك وامام زائريك وهناك الحشرات التى يخاف
    منها اثر سكان المملكه وهى حشرة النمل الابيض والعته والبق لما اضرار كبيره وهذا يتواجد بكثره مع دخول الصيف لذلك قم بالمبادره واتصل بشركة
    ركن الفرسان لتخلصك من الحشرات نهائيا وعدم اقترابها من بيتك هره ثانيه وهذا مع فريقها ذات الخبره فى مكافحة الحشرات والاتها الحديثه والمبيدات الامنه
    شركة مكافحة حشرات بالقطيف
    شركة ركن الفرسان تعد من افضل الشركات الموجوده فى المنطقه الشرقيه فى مجال الخدمات المنزليه حيث نستخدم اقوى المعدات ونعتمد على على افضل العماله المدربه على مستوى عالى من التدريب فنحن نقدم خدمة التسليك
    على احسن وجه لاننا متخصصون فى عملية تسليك المجارى وكشف التسربات وابادة الحشرات والنظافه العامة للمنزل بشكل عام فقط فى شركتنا تجد الجديه
    وتحمل المسؤليه فنحن افضل شركة تسليك مجارى والشركة الوحيده التى تستطيع تخليصك من كابوس مياه المجارى والصرف الصحى فقط اتصل بنا على
    شركة تسليك مجارى بالقطيف
    لسنا الوحيدون ولكننا بالفعل متميزون

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