R: Dataset with Raw and Scored Responses from Multiple Choice...
data.mc
R Documentation
Dataset with Raw and Scored Responses from Multiple Choice Items
Description
Dataset of responses from multiple choice items, containing 143 students
on 30 items.
Usage
data(data.mc)
Format
The dataset is a list with two elements. The entry raw
contains unscored (raw) item responses and the entry scored
contains the scored (recoded) item responses. The format is:
List of 2 $ raw : chr [1:143, 1:30] "A" "A" "A" "A" ... ..- attr(*, "dimnames")=List of 2 .. ..$ : NULL .. ..$ : chr [1:30] "I01" "I02" "I03" "I04" ... $ scored:'data.frame': ..$ I01: num [1:143] 1 1 1 1 1 1 1 1 1 1 ... ..$ I02: num [1:143] 1 1 1 0 1 1 1 1 1 1 ... ..$ I03: num [1:143] 1 1 1 1 1 1 1 1 1 1 ... [...] ..$ I29: num [1:143] NA 0 1 0 1 0 0 0 0 0 ... ..$ I30: num [1:143] NA NA 1 1 1 1 0 1 1 0 ...