sco {irtoys}R Documentation

Score a multiple choice test

Description

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.

Usage

sco(choices, key)

Arguments

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.

Author(s)

Ivailo Partchev

Examples

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))

[Package irtoys version 0.1.1 Index]