Return to the PTSD Checklist for DSM V (PCL-5) page
								
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										*PTSD Checklist for DSM V (PCL-5)*
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 03-13-2018
last updated:  10-21-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 10-21-2019 Millisecond Software

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BACKGROUND INFO 	
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This script implements the PTSD Checklist Civilian Version (PCL-5) by the 
National Center for PTSD - Behavioral Science Division
The PCL-C is a PTSD Checklist for DSM-V

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

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TASK DESCRIPTION
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20 5-point Likert scale, self-report

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DURATION 
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the default set-up of the script takes appr. 2 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: 'PCL_5.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 1-5, no reverse coding required)
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)

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)


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

expressions.totalSeverityScore:	the sum of all individual questions (Range: 0-80)
										suggested cut-off point for PTSD: 33 
									
values.DSMV_criteria:				DSMV Criteria = 1 (responses reached DSM V criteria for PTSD)
										=> positive criteria B, positive criteria C, positive criteria D, positive criteria E							
										DSMV Criteria = 0 => the responses did not reach DSM V criteria for PTSD

values.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
								
values.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	
	
values.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
	
values.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 (values.q1-values.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
								
							
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QUESTIONNAIRE SET-UP 
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17 5-point Likert scale, self-report

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INSTRUCTIONS 
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see section 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