sco {irtoys} | R Documentation |
Given a key, score a multiple choice test, i.e. recode the original choices to right (1) or wrong (0). Missing responses are treated as wrong.
sco(choices, key)
choices |
The original responses to the items in the test: persons as rows, items as columns. May contain NA. |
key |
A vector containing the key (correct answers) to the items in choices . If not given, the function will check if all data are either 0, 1, or NA: if yes, NA are recoded as 0, else an error message is returned. |
Ivailo Partchev
data(Unscored) res <- sco(Unscored, key=c(2,3,1,1,4,1,2,1,2,3,3,4,3,4,2,2,4,3))