Return to the World Health Organization Well-Being Index (WHO-5) page
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					 World Health Organization Well-Being Index (WHO-5)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 03-13-2015
last updated:  01-06-2020 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 01-06-2020 Millisecond Software

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BACKGROUND INFO 	
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This script implements a computerized version of the the World Health Organization Well-Being Index (WHO-5), 
a short self-administered screening tool of 5 positively worded questions to assess current mental well-being (last 2 weeks). 

The screening tool is available in multiple languages and can be downloaded at:

https://www.psykiatri-regionh.dk/who-5/who-5-questionnaires/

The WHO-Five Well-being Index (WHO-5) was developed at the Psychiatric Research Unit, Mental Health Centre North Zealand, Hillerød, Denmark.

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OVERVIEW
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5 questions on a 6-point Likert Scale, self report

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DURATION 
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the default set-up of the script takes appr. 1 minutes 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: 'who5.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: 5 (all of the time) - 0 (at no time)
									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: 'who5_summary*.iqdat' (a separate file for each 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.validtotal:			1 = all questions were answered; 
									0 = otherwise
								
expressions.who5_totalscore_raw:	the raw total score (0 <= totalscore <= 25); or "cannot be determined" if not all questions were answered
											0 representing worst possible and 25 representing best possible quality of life.
											"It is recommended to administer the Major Depression (ICD-10) Inventory if the raw score is below 13 or if the patient
											has answered 0 to 1 to any of the five items. A score below 13 indicates poor wellbeing and is an indication for testing
											for depression under ICD-10."
								
expressions.who5_totalscore_percent:	the percentage total score (0 <= score <= 100)
												A percentage score of 0 represents worst possible, whereas a score of 100 represents best possible quality of life.