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					*THE SCREEN FOR POSTTRAUMATIC STRESS SYMPTOMS (SPTSS)  - Version 3.0*
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 02-25-2014
last updated:  10-30-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 10-30-2019 Millisecond Software

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BACKGROUND INFO 	
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This script implements the Screen for Posttraumatic Stress Symptoms (SPTSS)  Version 3.0. A description of the
SPTSS can be found in:

Carlson, E.B. (2001).Psychometric Study of a Brief Screen for PTSD:Assessing the Impact of Multiple Traumatic Events. 
Assessment, 8, 431-441.

A paper version of the SPTSS (version 3.0) was retrieved from:
Carlson. (2012) . The Screen for Posttraumatic Stress Symptoms (SPTSS) . Measurement Instrument
Database for the Social Science. Retrieved from www.midss.ie

Version 3.0 differs from Version 2.0 in the time frame to consider (version 2.0: last 2 weeks; version 3.0: last week only)

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OVERVIEW
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Participants are asked to answer 17 radiobuttons questions pertaining PTSD symptoms within the last 2 weeks 
by choosing a number from 0 - 4 for each question.

The questionnaire adapts the layout of the paper and pencil questionnaire to the computer screen.
The 17 questions are spread out over 4 survey pages. Each page repeats the instructions and
participants can go back and forth between pages.

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DURATION 
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the default set-up of the script takes appr. 3 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: 'sptss_3_0.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 (not at all) - 4 (more than once every day)
									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 visit									
									
									

(2) Summary data file: 'sptss_2_0_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.TotalScore:			the sum of all individual scores
expressions.SPTSS_Score: 		the average score

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INSTRUCTIONS 
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Instructions can easily be edited under EDITABLE CODE -> Editable Parameters

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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