Return to the Levenson's Self-Report Psychopathy Scale (LSRP) page
___________________________________________________________________________________________________________________
Levenson's Self-Report Psychopathy Scale (LSRP)
___________________________________________________________________________________________________________________
Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 03-12-2018
last updated: 10-09-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC
Script Copyright © 10-09-2019 Millisecond Software
___________________________________________________________________________________________________________________
BACKGROUND INFO
___________________________________________________________________________________________________________________
This script implements a computerized version of the Levenson's Self-Report Psychopathy Scale (LSRP) as described in:
Levenson, M. R., Kiehl, K. A., & Fitzpatrick, C. M. (1995). Assessing psychopathic attributes in a noninstitutionalised
population. Journal of Personality and Social Psychology, 68, 151–158.
___________________________________________________________________________________________________________________
OVERVIEW
___________________________________________________________________________________________________________________
26 4-point Likert questions, self-report
___________________________________________________________________________________________________________________
DURATION
___________________________________________________________________________________________________________________
the default set-up of the script takes appr. 2.5 minutes to complete
___________________________________________________________________________________________________________________
DATA FILE INFORMATION
___________________________________________________________________________________________________________________
The default data stored in the data files are:
(1) Raw data file: 'lsrp.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: 1 (disagree strongly) - 4 (agree strongly)
R = 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: 'lsrp_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)
expressions.total: sum of all scores (Range: 26-104), the higher the score the higher the self-resported level of psychopathy
expressions.PP: Primary Psychopathy (measures callous, selfish and manipulative interpersonal attitudes) (Range: 16-64)
sum of (q1, q2, q3, q4, q5, q6, q7, q8, q9, q10R, q11, q12R, q13, q14R, q15R, q16R)
expressions.SP: Secondary Psychopathy (measures impulsivity and a self-defeating lifestyle) (Range: 10 - 40)
sum of (q17, q18, q19R, q20, q21, q22, q23R, q24, q25, q26)
R= reversed scored
___________________________________________________________________________________________________________________
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