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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: 11-08-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC
Script Copyright © 11-08-2019 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)
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)
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)