« My Al-Jazeera Appearance on American Jews and Israel | Main | My Thoughts on Katie Roiphe, Sadomasochism, and Feminism »

April 13, 2012

Comments

Congratulations!

Beware inviting suggestions if you know your readers include historians...

Fabulosa mi sobrina preciosa!

This is a great premise for a book. I love historical analysis that explains how we've gotten to a particular point on a hot button issue; teacher effectiveness is undoubtedly one of the biggest ones in education right now.

I find fascinating the use of economic (both macro and micro) forces as a lens for such explanations. I had several courses in college that filtered history through this lens and it's amazing what can be plausibly connected together (think Freakonomics-like studies). The shift in teacher evaluation right now (in my humble opinion) is heavily linked to the budget crisis of public entities as a result of recent recessions - and once again teachers are taking the fall.

tl;dr: I'm anxiously awaiting your book :)

Congratulations, Dana. I'll look forward to reading this.

The critical contrast is between your paragraph in "The Test Generation", which I love quoting -- "Experts raise a number of powerful objections: that value-added measurements are often based on poorly designed, unsophisticated standardized tests; that the ratings are particularly volatile (a teacher who scores very well or very poorly using value-added has only a one-third chance of getting a similar score the following year, and it takes about 10 years of data to reduce the value-added error rate to 12 percent for any individual teacher); and that the technique gives the impression that the teacher is the only factor in student achievement, ignoring parental involvement, after-school tutoring, and other "inputs" that research shows account for up to 80 percent of a student's achievement outcomes" -- and this in Steven Brill's "Class Warfare", which I've just finished: "Moreover, the differences, teacher by teacher, remained relatively stable, meaning a teacher shown to be effective one year was typically shown to be effective the next year, too, while those who performed badly one year kept performing badly. This was the lack of volatility that so surprised Kane" (153).

If you're right, all of the Gates Foundation's current initiative relating to teaching effectiveness and personnel systems is wrong, as are most of the recent legal changes in the states; but if Kane is right, then this focus on teacher effectiveness makes sense as an effort to combat intergenerational poverty. I hope you will address this conflict as soon as possible, since Mr. Brill's claim is at least superficially better documented.

Bruce, while there is lots of great reporting in Brill's book, he vastly oversimplifies the research on teacher effects. In this blog post I provide links to a number of papers. Even the value-added enthusiasts Brill cites, like Hanushek, Kane, and Staiger, agree that the impact of teacher quality on a child's academic achievement tops out at about 20 percent.


http://www.danagoldstein.net/dana_goldstein/2011/11/in-which-i-cite-my-sources-in-an-attempt-to-deflate-the-hot-air-from-the-teacher-quality-debate.html

On the question of volatility in value-added scores, we know they are quite volatile in the middle of the pack, less so at the top and bottom of the curve. This GothamSchools post summarizes the research.

http://gothamschools.org/2012/02/23/why-we-wont-publish-individual-teachers-value-added-scores/

The comments to this entry are closed.