___________________________________________________________________________________________________________________ *PTSD Checklist Civilian Version (PCL-C) - DSM IV checklist* ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 03-13-2018 last updated: 02-25-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-25-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements the PTSD Checklist Civilian Version (PCL-C) by the National Center for PTSD - Behavioral Science Division The PCL-C is a PTSD Checklist for DSM-IV Reference: https://www.ptsd.va.gov/professional/assessment/adult-sr/ptsd-checklist.asp ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ 17 5-point Likert scale, self-report ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 2 minutes to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'PCL_C.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_c_summary.iqdat' (Inquisit Lab: one data file per participant) inquisit.version: Inquisit version run computer.platform: the platform the script was run on (win/mac/ios/android) startDate: date script was run startTime: time script was started subjectid: assigned subject id number groupid: assigned group id number sessionid: assigned session id number elapsedTime: time it took to run script (in ms); measured from onset to offset of 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 totalSeverityScore: the sum of all individual questions (Range: 17 - 85) a score of 44 is considered to be PTSD positive in general population DSMIV_criteria: DSMIV_criteria = 1 (responses reached DSM IV criteria for PTSD) => positive criteriaB, positive criteriaC, positive criteriaD DSMIV_criteria = 0 => the responses did not reach DSM IV criteria for PTSD criteriaB: 1 (positive for DSM IV criteria B for PTSD): At least one B-item was 'positively' rated (= 3 or above) (B-items: question 1-5) 0 = negative for DSM IV criteria B for PTSD criteriaC: 1 (positive for DSM IV criteria C for PTSD): At least three C-item were 'positively' rated (= 3 or above) (C-items: question 6-12) 0 = negative for DSM IV criteria C for PTSD criteriaD: 1 (positive for DSM IV criteria D for PTSD): At least two D-items were 'positively' rated (= 3 or above) (D-items: question 13-17) 0 = negative for DSM IV criteria D for PTSD for each individual question (values.q1-values.q17), the raw response score (1-5) was binary coded as 1 = the response was 3 or above (participant chose at least 'moderately' for the individual question) => positive 0 = the response was 1 or 2 => 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