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Joel Klein doesn’t believe in statistical significance?!

I have to take issue with Klein’s dismissal of statistical significance, as reported by the Sun:

The National Center for Education Statistics also concludes that upward trends in the reading scores of black and Hispanic fourth-graders lauded by Mr. Klein are not statistically significant.

Mr. Klein criticized the National Center on Education Statistics analysis.

“Those are just confidence levels. Nobody is saying this is a science,” Mr. Klein said. He added: “If three points is flat, and four points is statistically significant, then what you’re doing is, you’re playing something of a game.”

Um, Chancellor Klein? Statistical significance isn’t game-playing - it’s a standard measurement of how likely a result is to be non-random. Did test scores rise because of DOE policies, or random chance? Statisticians don’t just draw a line wherever they want - they use widely-accepted significance tests that you learn in any basic stats class. Or perhaps you’re suggesting that the NCES plays with confidence levels to downplay New York’s progress?

2 Comments

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  1. An Unchanged NYC Achievement Gap Hits the Papers (Plus, Joel Klein’s Postmodernist Turn!)…

    With her article on New York City’s lack of progress in closing the achievement gap, Elizabeth Green demonstrates once again that’s she the sharpest and most inquisitive education reporter in New York City. I’m pretty sure she’s the second coming…..

  2. vhamer

    ha, nice.

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