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View Diary: Bittersweet in Education, Competition, and Test Scores (63 comments)

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  •  Because it's not something she feels she controls (5+ / 0-)

    And if you look at the "value add" schemes for coming up with teacher rankings, what you find is that they don't identify the same teachers as being in the top or bottom group consistently from year to year. The data is very noisy, and the more low income and disadvantaged kids you teach, the noisier it is.

    It is also affected by the exact schedule of when the tests are administered that year, where spring break falls, how many snow days there have been, how many kids were out with flu, etc.

    Finally, even if you think 'value added' analyses are valuable as they have been tried, they're only usable for grades where the kids have one teacher for the year and are tested the year before, which is generally grades 3-6, sometimes 3-8. You can't use it to evaluate arguably your most important teachers in k-2, and you can't use it for high school teachers, or teachers who teach subjects without a state bubble test.

    Fry, don't be a hero! It's not covered by our health plan!

    by elfling on Thu Jan 26, 2012 at 11:02:49 AM PST

    [ Parent ]

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