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An IERI – International Educational Research Institute Journal

Table 1 Numbers of countries and students participating in the three PISA assessments, of which the major domains and numbers of items were included in the current study

From: Predictors of individual performance changes related to item positions in PISA assessments

PISA

Countries

Students

Major domain

Items included

2006

57

397,920

Science

103

2009

65

479,616

Reading

131

2012

68

485,490

Mathematics

109