Both states used portfolio assessments in writing and mathematics but also gave other, standardized tests. In Vermont, mathematics portfolio scores correlated about as strongly with a standardized test of writing as with a standardized test of math.6 In Kentucky, the portfolio assessment of mathematics correlated more strongly with the portfolio assessment of writing than with anything else.7 These findings suggest that the mathematics portfolio assessments were measuring things other than mathematics—proficiency in writing and differences among teachers in the way portfolio tasks were
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Fascinating.
