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							Screener Adult ADHD Self-Report Scale (ASRS) - 6 questions
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 02-28-2018
last updated:  11-07-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 11-07-2019 Millisecond Software

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BACKGROUND INFO 	
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This script implements a computerized version of the short ASRS screener instrument of adult ADHD
(based on the the World Health Organization (WHO) 18-item ASRS) as introduced by:

Kessler RC, Adler L, Ames M, Demler O, Faraone S, Hiripi E, Howes MJ, Jin R, Secnik K, Spencer
T, Ustun TB, Walters EE. (2005). The World Health Organization Adult ADHD Self-Report Scale
(ASRS): a short screening scale for use in the general population. Psychol. Med.; 35:245–256.

Scoring of the 6 item ASRS in:
van de Glind, G. et al (2013). Validity of the Adult ADHD Self-Report Scale (ASRS) as a screener for adult ADHD 
in treatment seeking substance use disorder patients. Drug Alcohol Depend, 132(3): 587–596.

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OVERVIEW
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6 screening questions for adult ADHD, 5-point Likert scale

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DURATION 
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the default set-up of the script takes less than a 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: 'asrs_6.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 (never) - 4 (very often)
									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: 'asrs_6_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)

ScreeningScore:					=> number of items with a positive score
									=> screener ASRS is positive for adult ADHD with a score of 4 or above (van de Glind et al., 2013)
								
categorized response values into positive or negative score for each of the 6 questions								
q1:						1 (=positive score) if question 1 has a raw score of 2 or higher; 0 (negative score) otherwise 
q2:						1 (=positive score) if question 2 has a raw score of 2 or higher; 0 (negative score) otherwise  
q3:						1 (=positive score) if question 3 has a raw score of 2 or higher; 0 (negative score) otherwise  
q4:						1 (=positive score) if question 4 has a raw score of 3 or higher; 0 (negative score) otherwise  
q5:						1 (=positive score) if question 5 has a raw score of 3 or higher; 0 (negative score) otherwise  
q6:						1 (=positive score) if question 6 has a raw score of 3 or higher; 0 (negative score) otherwise 		
								(see van de Glind et al, 2013, p.17)
								
raw response scores (0-4) for each of the 6 questions:								
radiobuttons.q1.response-radiobuttons.q6.response
								
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EDITABLE CODE 
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check below for (relatively) easily editable parameters, stimuli, instructions etc. 
Keep in mind that you can use this script as a template and therefore always "mess" with the entire code 
to further customize your experiment.

The parameters you can change are:

/pageinstructions:			the instructions that appear at the top of each surveypage