This vector contains all abbreviated country names for all PISA waves (2000 until 2015) with their correctly written equivalent. Some of these abbreviations are in ISO 3-letter while others were written incorrectly, e.g. Korea, Republic of.
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1 2 3 4 5 6 | # install.packages(PISA2006lite)
library(PISA2006lite)
unique(PISA2006lite::student2006$CNT)
unique(pisa_countrynames[as.character(PISA2006lite::student2006$CNT)]) # New country names
# This can be saved as a new column or replace the previous column.
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