Return to the Insomnia Severity Index page
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INSOMNIA SEVERITY INDEX (ISI)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 10-10-2013
last updated: 10-07-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC
Script Copyright © 10-07-2019 Millisecond Software
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BACKGROUND INFO
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This script implements the Insomnia Severity Index (ISI) to assess Insomnia as described in:
Bastien, C.H., Vallières A., & Morin, C.M. (2001). Validation of the Insomnia Severity Index as a clinical outcome
measure for insomnia research. Sleep Medicine, 2, 297-307.
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OVERVIEW
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This script offers the 7 questions of the Insomnia Severity Index on a single surveypage.
A demographic surveypage at the beginning (by default: not run) as well as a feedback page at the end (by default: run)
are optional and controlled via Editable Parameters.
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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: 'insomniaseverityindex.iqdat' (a separate file for each participant)
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 - 4 (anchors depend on question)
no automatically 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: 'insomniaseverityindex_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)
textbox.name.response/textbox.age.response/dropdown.gender.response: Name/Age/Gender-if collected
isi_totalscore: the participant's total ISI score
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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:
/skipdemographics: false = script does collect demographic data
true = script does NOT collect demographic data (default)
/skipfeedback: false = script does provide feedback to participants (default)
true = script does NOT provide feedback to participants
Note: to customize feedback go to EDITABLE CODE -> Editable Stimuli