This is an example PISA dataset of mathematics items. The dataset contains 565 students on 11 items.
data(data.pisaMath)The dataset is a list. The list element data
contains the dataset with the demographical variables
student ID (idstud), school ID (idschool), a dummy variable for female
students (female), socioeconomic status (hisei)
and migration background (migra). The remaining
variables (starting with M in the name) are
the mathematics items.
The item metadata are included in the list element
item which contains item name (item) and the
testlet label (testlet). An item not included
in a testlet is indicated by NA.
The format is:
List of 2
$ data:'data.frame':
..$ idstud : num [1:565] 9e+10 9e+10 9e+10 9e+10 9e+10 ...
..$ idschool: int [1:565] 900015 900015 900015 900015 ...
..$ female : int [1:565] 0 0 0 0 0 0 0 0 0 0 ...
..$ hisei : num [1:565] -1.16 -1.099 -1.588 -0.365 -1.588 ...
..$ migra : int [1:565] 0 0 0 0 0 0 0 0 0 1 ...
..$ M192Q01 : int [1:565] 1 0 1 1 1 1 1 0 0 0 ...
..$ M406Q01 : int [1:565] 1 1 1 0 1 0 0 0 1 0 ...
..$ M406Q02 : int [1:565] 1 0 0 0 1 0 0 0 1 0 ...
..$ M423Q01 : int [1:565] 0 1 0 1 1 1 1 1 1 0 ...
..$ M496Q01 : int [1:565] 1 0 0 0 0 0 0 0 1 0 ...
..$ M496Q02 : int [1:565] 1 0 0 1 0 1 0 1 1 0 ...
..$ M564Q01 : int [1:565] 1 1 1 1 1 1 0 0 1 0 ...
..$ M564Q02 : int [1:565] 1 0 1 1 1 0 0 0 0 0 ...
..$ M571Q01 : int [1:565] 1 0 0 0 1 0 0 0 0 0 ...
..$ M603Q01 : int [1:565] 1 0 0 0 1 0 0 0 0 0 ...
..$ M603Q02 : int [1:565] 1 0 0 0 1 0 0 0 1 0 ...
$ item:'data.frame':
..$ item : Factor w/ 11 levels "M192Q01","M406Q01",..: 1 2 3 4 ...
..$ testlet: chr [1:11] NA "M406" "M406" NA ...