Tom Loveless: Be Skeptical of China’s Showing on PISA

Diane Ravitch's blog

Tom Loveless has been writing about international assessments for many years. He was quick to blow the whistle on China when the previous international test scores came out, noting that unlike the U.S. and most other nations, China was not testing a cross-section of its students.

In this article on Valerie Strauss’s Answer Sheet blog, Loveless calls out China again for rigging the outcomes to make its students #1.

China’s gains on the tests from 2015 to 2018 were so large as to be incredible, literally not credible.

So the typical change in a nation’s scores is about 10 points. The differences between the 2015 and 2018 Chinese participants are at least six times that amount. The differences are also at least seven times the standard deviation of all interval changes. Highly unusual…

The past PISA scores of Chinese provinces have been called into question (by me and others) because…

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