They claimed, amongst other things, that the questions had been ill-translated, that the samples drawn in some countries were not representative, that German students ( most of whom had never done a multiple choice tests in their lives before ) were disadvantaged by the multiple choice questions, that the PISA questions had no curricular validity and that PISA was " in fact an IQ-test ", which according to them showed that dysgenic fertility was taking place in Germany.
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