choice_matrix {cIRT}

Choice Matrix Data

Description

This data set contains the subject's choices and point values for the difficult questions.

Usage

choice_matrix

Format

A data frame with 3780 observations on the following 5 variables.

subject_id

Research Participant Subject ID. There are 102 IDs and each ID has 15 observations.

hard_q_id

The item ID of the hard question assigned to the student (16-30)

easy_q_id

The item ID of the easy question assigned to the student (1-15)

choose_hard_q

Selected either: Difficult Question (1) or Easy Question (0)

high_value

Range of values associated with Difficult Question that span from 12 to 16, repeated three times per subject

low_value

Range of values associated with Easy Question that span from 4 to 6, repeated five times per subject

is_correct_choice

Did the user select an item that was answered correctly?

Author(s)

Steven Andrew Culpepper and James Joseph Balamuta

Source

Choice38 Experiment at UIUC during Spring 2014 - Fall 2014