This TIMSS 2007 dataset contains item responses of 4472 eigth grade Russian students in Mathematics and Science.
data(data.timss07.G8.RUS)The datasets contains raw responses (raw), scored responses
(scored) and item informations (iteminfo).
The format of the dataset is:
List of 3
$ raw :'data.frame':
..$ idstud : num [1:4472] 3010101 3010102 3010104 3010105 3010106 ...
..$ M022043 : atomic [1:4472] NA 1 4 NA NA NA NA NA NA NA ...
.. ..- attr(*, "value.labels")=Named num [1:7] 9 6 5 4 3 2 1
.. .. ..- attr(*, "names")=chr [1:7] "OMITTED" "NOT REACHED" "E" "D*" ...
[...]
..$ M032698 : atomic [1:4472] NA NA NA NA NA NA NA 2 1 NA ...
.. ..- attr(*, "value.labels")=Named num [1:6] 9 6 4 3 2 1
.. .. ..- attr(*, "names")=chr [1:6] "OMITTED" "NOT REACHED" "D" "C" ...
..$ M032097 : atomic [1:4472] NA NA NA NA NA NA NA 2 3 NA ...
.. ..- attr(*, "value.labels")=Named num [1:6] 9 6 4 3 2 1
.. .. ..- attr(*, "names")=chr [1:6] "OMITTED" "NOT REACHED" "D" "C*" ...
.. [list output truncated]
$ scored : num [1:4472, 1:443] 3010101 3010102 3010104 3010105 3010106 ...
..- attr(*, "dimnames")=List of 2
.. ..$ : NULL
.. ..$ : chr [1:443] "idstud" "M022043" "M022046" "M022049" ...
$ iteminfo:'data.frame':
..$ item : Factor w/ 442 levels "M022043","M022046",..: 1 2 3 4 5 6 21 7 8 17 ...
..$ content : Factor w/ 8 levels "Algebra","Biology",..: 7 7 6 1 6 7 4 6 7 7 ...
..$ topic : Factor w/ 49 levels "Algebraic Expression",..: 32 32 41 29 ...
..$ cognitive : Factor w/ 3 levels "Applying","Knowing",..: 2 1 3 2 1 1 1 1 2 1 ...
..$ item.type : Factor w/ 2 levels "CR","MC": 2 1 2 2 1 2 2 2 2 1 ...
..$ N.options : Factor w/ 4 levels "-"," -","4","5": 4 1 3 4 1 4 4 4 3 1 ...
..$ key : Factor w/ 7 levels "-"," -","A","B",..: 6 1 6 7 1 5 5 4 6 1 ...
..$ max.points: int [1:442] 1 1 1 1 1 1 1 1 1 2 ...
..$ item.label: Factor w/ 432 levels "1 teacher for every 12 students ",..: 58 351 ...