R: An S4 class representing responses of a single examinee

Response-class {irt}

R Documentation

An S4 class representing responses of a single examinee

An S4 class representing responses of a single examinee

examinee_id: Examinee/Subject/Student ID. A string or an integer to identify an examinee.
item_id: A character vector holding the item IDs.
testlet_id: A character vector holding the testlet IDs that given item belongs. It can be NULL if none of the items belongs to any testlet. Items that do not belong to any testlet should be represented by NA.
score: A numeric vector holding the scores given to items.
raw_response: A vector of strings holding the raw responses to items.
order: An integer vector representing the administration order of an item.
response_time: A numeric vector representing the response times. By default, numbers are assumed to represent seconds.
misc: A list that will hold miscellaneous information about the responses. For example, misc = list(item_role = c("O", "O", "O", "F")) will hold whether administered item is a field test or an operational test item.

Emre Gonulates

[Package irt version 0.2.9 Index]