User Manual for Inquisit's Cannabis Use Disorder Identification Test - Revised (CUDIT-R)


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						The Cannabis Use Disorder Identification Test - Revised (CUDIT-R)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 04-27-2018
last updated:  02-21-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 02-21-2022 Millisecond Software

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BACKGROUND INFO 	
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This script implements a computerized version of the Cannabis Use Disorder Identification Test - Revised (CUDIT-R)
by:

Adamson SJ, Kay-Lambkin FJ, Baker AL, Lewin TJ, Thornton L, Kelly BJ, and Sellman JD. (2010). An
Improved Brief Measure of Cannabis Misuse: The Cannabis Use Disorders Identification Test – Revised
(CUDIT-R). Drug and Alcohol Dependence 110:137-143.

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OVERVIEW
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8 5-point Likert questions regarding cannabis use over the last 6 months, self-report											  

The first question asks about cannabis use during the last 6 months. If no cannabis use is reported for this
time frame, the remaining questions are skipped.											  
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DURATION 
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the default set-up of the script takes less than 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: 'cudit_r.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 - depends on question)
								cannabis use: 0 = no; 1 = yes
								q1-q7: 0 (never) - 4 (almost daily)
								q8: 0 (never), 2, 4 (during the last 6 months)
								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: 'cudit_r_summary.iqdat' (Inquisit Lab: one data file per participant)

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

cudit_r_Score:						sum of all individual scores (range: 0-32)
									scores >= 8 indicates hazardous cannabis use,
									scores >= 12 indicate possible cannabis use disorder for which further use might be required
							

radiobuttons.cannabisuse.response (first question): 1 = yes; 0 = no 
+ remaining 8 questions

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INSTRUCTIONS 
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see section SURVEYPAGES (change/edit captions under each surveypage)