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22 jun 2011

Bullshit Fields (18)

Educational Testing and Psychometrics.

Here we have media reports on how little kids know about history, but the testing organization marks right answers wrong and throws out easy questions, preferring those that distinguish very good students from not so good ones. You can't use a test designed to discriminate as a measure to evaluate the proficiency of the group as a whole. Those are two contradictory aims.

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