World Health Organization Disability Assessment Schedule 2.0 - WHODAS 2

Technical Manual

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond

Created: January 28, 2018

Last Modified: January 01, 2023 by K. Borchert (katjab@millisecond.com), Millisecond

Script Copyright © Millisecond Software, LLC

Background

This script implements a computerized version of the World Health Organization Disability Assessment Schedule 2.0 (self-administered)

Https://www.who.int/classifications/icf/whodasii/en/ https://www.who.int/classifications/icf/WHODAS2.0_12itemsSELF.pdf

Duration

1 minute

Overview

12 5-point likert questions + 3 additional questions

Summary Data

File Name: who_das_12_summary.iqdat' (Inquisit Lab: one data file per participant)

Data Fields

NameDescription
inquisit.version Inquisit version number
computer.platform Device platform: win | mac |ios | android
startDate Date the session was run
startTime Time the session was run
subjectId Participant ID
groupId Group number
sessionId Session number
elapsedTime Session duration in ms
completed 0 = Test was not completed
1 = Test was completed
total The sum of the 12 multiple-choice scores (Range: 0 - 48)
("None" = 0, "Mild" = 1, "Moderate" = 2, "Severe" = 3, "Extreme or cannot do" = 4)
radioButtons.q1.response-q12 The individual scores of the 12 multiple-choice questions
textbox.q13.response-q15 The responses (=days of impairment) to the additional 3 open-ended questions

Raw Data

File Name: who_das_12.iqdat

Data Fields

NameDescription
date Date the session was run
time Time the session was run
subject, group, session With the current subject/groupnumber/session id
build Inquisit version number
q*_response Response given (in assigned values)
Scale: 0 (none) - 4 (extreme or cannot do)
no reversed scored questions
q*_latency How much time (in ms) the participant spent on the surveyPage with this particular
question (the last time this particular surveyPage was visited)