Are the results of the different countries really comparable? | PISA Study
Are the results of the different countries really comparable? Approximately 70 different countries are participating in the PISA study, which raises the question of whether the country results are really comparable. In each country the same group of people is confronted with the same tasks. Judging by this aspect, the results are comparable in a … Are the results of the different countries really comparable? | PISA Study