"the validity of the pisa study has increasingly been called into question" auf Deutsch The validity of the PISA study has increasingly been called into question. An der Aussagekraft der PISA-Studie werden zunehmend Zweifel laut. Ausführliche Übersetzungen für "the validity of the pisa study has increasingly been called into question" The validity of the PISA study has increasingly been called into question. The validity of the PISA study has increasingly been called into question. An der Aussagekraft der PISA-Studie werden zunehmend Zweifel laut.