I just started looking at the so-called “Value-added” scores that the Los Angeles Times has been using in order to make the teachers in the public schools there.
What the LATimes has done is so cynical and corrupt that it’s amazing that nobody seems to have noticed it and protested. Certainly the teachers’ union there should have pointed it out.
For each teacher, they only provide a SINGLE number for their alleged contributions over their entire career, whether they taught for one year, five years, or 51 years.
That is a dishonest, because these scores probably fluctuate like crazy from year to year, and the LAT doesn’t let you see how wildly they change from year to year, even when a teacher teaches the exact same grade level(s) to very similar students at the exact same school.
Or at least that’s what happened in NYC, as both Gary Rubenstein and I, working separately, discovered.
In oder to get a spresdsheet that contains all the data for all these teachers, for every year that there is data, I will probably have to pay about $400-$500, according to the data people I spoke to at the newspaper.
I would certainly like to find some folks willing to share the cost.
Anybody interested? You’d get a copy,too.