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								PTSD Checklist for DSM V (PCL-5)
SCRIPT INFO

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 03-13-2018
last updated:  05-30-2018 by K.Borchert for Millisecond Software LLC

Script Copyright © 05-30-2018 Millisecond Software


BACKGROUND INFO

											*Purpose*
This script implements the PTSD Checklist Civilian Version (PCL-5) by the 
National Center for PTSD - Behavioral Science Division

https://www.ptsd.va.gov/professional/assessment/adult-sr/ptsd-checklist.asp

The PCL-C is a PTSD Checklist for DSM-V


											  *Task*
20 5-point Likert scale, self-report


DATA FILE INFORMATION: 
The default data stored in the data files are:

(1) Raw data file: 'PCL_5.iqdat'

date, time, group, subject:		date and time script was run with the current group/subjectnumber 
build:							the Inquisit build 

q*_response:					response given (in assigned values 1-5)
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: 'PCL_5_summary.iqdat' (Inquisit Lab: one data file per participant)

script.startdate:				date script was run
script.starttime:				time script was started
script.subjectid:				subject id number
script.groupid:					group id number
script.elapsedtime:				time it took to run script (in ms)
computer.platform:				the platform the script was run on
/completed:						0 = script was not completed (prematurely aborted); 1 = script was completed (all conditions run)


Scoring:for more info, see: https://www.ptsd.va.gov/professional/assessment/documents/PCL-5_Standard.pdf

/totalSeverityScore:			the sum of all individual questions (Range: 0-80)
								suggested cut-off point for PTSD: 33 
									
/DSMV_criteria:					DSMV_criteria = 1 (responses reached DSM V criteria for PTSD)
									=> positive criteriaB, positive criteriaC, positive criteriaD, positive criteriaE							
								DSMV_criteria = 0 => the responses did not reach DSM V criteria for PTSD

/criteriaB:						1 (positive for DSM V criteria B for PTSD): At least one B-item was 'positively' rated (= 2 or above) (B-items: question 1-5)								
								0 = negative for DSM V criteria B for PTSD
								
/criteriaC:						1 (positive for DSM V criteria C for PTSD): At least one C-item was 'positively' rated (= 2 or above) (C-items: question 6-7)								
								0 = negative for DSM V criteria C for PTSD	
	
/criteriaD:						1 (positive for DSM V criteria D for PTSD): At least two D-items were 'positively' rated (= 2 or above) (D-items: question 8-14)								
								0 = negative for DSM V criteria D for PTSD
	
/criteriaE:						1 (positive for DSM V criteria E for PTSD): At least two E-items were 'positively' rated (= 2 or above) (E-items: question 15-20)							
								0 = negative for DSM V criteria E for PTSD

for each individual question (q1-q20), the raw response score (0-4) was binary coded as 
								1 = the response was 2 or above (participant chose at least 'moderately' for the individual question) => positive
								0 = the response was 0 or 1 => negative
								
							
QUESTIONNAIRE SET-UP
17 5-point Likert scale, self-report

INSTRUCTIONS
see section Editable Parameters

EDITABLE CODE:
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

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