#' @name choice_matrix
#' @title Choice Matrix Data
#' @description This data set contains the subject's choices and point values for the difficult questions.
#' @docType data
#' @usage data(choice_matrix)
#' @format A data frame with 3780 observations on the following 5 variables.
#' \describe{
#'   \item{\code{subject_id}}{Research Participant Subject ID. There are 102 IDs and each ID has 15 observations.}
#'   \item{\code{hard_q_id}}{The item ID of the hard question assigned to the student [16-30]}
#'   \item{\code{easy_q_id}}{The item ID of the easy question assigned to the student [1-15]}
#'   \item{\code{choose_hard_q}}{Selected either: Difficult Question (1) or Easy Question (0)}
#'   \item{\code{high_value}}{Range of values associated with Difficult Question that span from 12 to 16, repeated three times per subject}
#'   \item{\code{low_value}}{Range of values associated with Easy Question that span from 4 to 6, repeated five times per subject}
#'   \item{\code{is_correct_choice}}{Did the user select an item that was answered correctly?}
#' }
#' @source Choice38 Experiment at UIUC during Spring 2014 - Fall 2014
#' @author Steven Culpepper and James Balamuta

Try the cIRT package in your browser

Any scripts or data that you put into this service are public.

cIRT documentation built on May 29, 2017, 10:50 p.m.