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View Diary: Ten Reasons Why Value-Added Assessments are Harmful to a Child’s Education (107 comments)

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  •  I submit (2+ / 0-)
    Recommended by:
    Mostel26, ManhattanMan

    that it could mean a lot of things, some educationally appropriate and some not. It can also just be that standard result we see with standardized tests: that the strongest correlating variable remains household income, and that the resolution of the data available doesn't allow it to be pulled out.

    But it does suggest that typically teacher-student matchups are not random.

    I am not certain to what extent this was controlled for individual schools; I suspect not. Few elementary schools would be large or diverse enough to have enough 5th grade teachers to see this effect with much confidence.

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

    by elfling on Tue Mar 12, 2013 at 05:38:50 PM PDT

    [ Parent ]

    •  You only need two... (0+ / 0-)

      ...5th-grade teachers. In fact the effect is more pronounced with just two, because each teacher you add costs your regression model a degree of freedom.

      1) You have a young one with no political pull and no social power.

      2) You have an old one who is close friends with the Principal.

      The Old One asks to have Genius, Hardworker, Imaginative, and Polite assigned to her class. She sticks the Young Teacher with Stupid, Unmotivated, Violent, and Lazy.

      Sure enough, a regression shows that being assigned to Old One's class is a powerful predictor of good 3rd-grade performance.

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