pisaRT contains a small example data set from the PISA
2018 study with scored responses, response times and log transformed
response times on item level. The original files can be retrieved as the
“Cognitive items total time/visits data file” from https://www.oecd.org/pisa/data/2018database/.
# Install pisaRT from CRAN
install.packages("pisaRT")# load package
library(pisaRT)
# data structure of wide format data
str(pisaW)
# data structure of long format data
str(pisaL)
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