Return to the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2) page
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									WORLD HEALTH ORGANIZATION
									DISABILITY ASSESSMENT SCHEDULE 2.0 (WHO-DAS 2.0, self administered)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 02-28-2018
last updated:  11-06-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 11-06-2019 Millisecond Software

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

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

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OVERVIEW
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12 5-point likert questions + 3 additional questions

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DURATION 
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the default set-up of the script takes appr. 1 minute to complete
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DATA FILE INFORMATION 
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The default data stored in the data files are:

(1) Raw data file: 'who_das_12.iqdat'

date, time:						date and time script was run with the current group/subjectnumber 
subject, group, session:	  		 with the current subject/groupnumber/session id
build:							the Inquisit build 

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)

(2) Summary data file: 'who_das_12_summary.iqdat' (Inquisit Lab: one data file per participant)

computer.platform:				the platform the script was run on (win/mac/ios/android)
script.startdate:					date script was run
script.starttime:					time script was started
script.subjectid:					assigned subject id number
script.groupid:					assigned group id number
script.sessionid:					assigned session id number
script.elapsedtime:				time it took to run script (in ms); measured from onset to offset of script
script.completed:					0 = script was not completed (prematurely aborted); 
									1 = script was completed (all conditions run)
								
/expressions.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