European Scholars: PISA Rankings Are “Utterly Wrong” and “Meaningless”

Diane Ravitch's blog

Professor Svend Kreiner, a prominent statistician and psychometrician at the University of Copenhagen in Denmark and Dr. Hugh Morrison of Queens University in Belfast have published studies blasting the reliability and validity of the PISA league tables. They describe PISA’s rankings as “useless,” “utterly wrong,” and “meaningless.”

According to TES (London),

“Professor Svend Kreiner, a statistician from the University of Copenhagen in Denmark, said that an inappropriate model is used to calculate the Pisa rankings every three years. In a paper published this summer, he challenges their reliability and shows how they fluctuate significantly according to which test questions are used. He reveals how, in the 2006 reading rankings, Canada could have been positioned anywhere between second and 25th, Japan between eighth and 40th and the UK between 14th and 30th.

“Dr Hugh Morrison, from Queens University Belfast in Northern Ireland, goes further, saying that the model Pisa uses to…

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