User Manual for Inquisit's Short Dark Triad Personality Test (SD3)


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										*Short Dark Triad (SD3)*
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 07-01-2021
last updated: 07-01-2021 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Script Copyright © 07-01-2021 Millisecond Software

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BACKGROUND INFO 	
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This script implements the Short Dark Triad Questionnaire (SD3) to assess the 'dark triad' of the
three socially aversive traits: Machiavellianism, narcissism, and psychopathy.

Reference
Jones, Daniel & Paulhus, Delroy. (2013). Introducing the Short Dark Triad ( SD3): 
A Brief Measure of Dark Personality Traits. 
Assessment. 21. 10.1177/1073191113514105. 

More info (including norming data) at:
https://www.psych.ubc.ca/~dpaulhus/Paulhus_measures/SD3.1.1.doc
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OVERVIEW
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27 items (9 items per subscale) tested with 5-point Likert type questions.
The subscales are tested in the following order: 
(1) Machiavellianism
(2) narcissism
(3) psychopathy.

(1) Machiavellianism:
- callous affect 
- manipulativeness
- a strategic-calculating orientation (focus on long-term goals)

(2) Narcissism
- callous affect
- grandiosity
- quest for ego-reinforcement

(2) Psychopathy
- callous affect
- self-control deficits/impulsivity (focus on short-term goals)

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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: 'sd3.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) to 5 (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: 'sd3_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)
									
M:									the mean score (1-5) on the Machiavellianism subscale
M_zscore:							the calculated Machiavellianism z-score based on provided norming data (see below)
M_percentile:						the calculated percentile of the Machiavellianism z-score based on provided norming data (see below)
									
N:									the mean score (1-5) on the Narcissism subscale	
N_zscore:							the calculated Narcissism z-score based on provided norming data (see below)
N_percentile:						the calculated percentile of the Narcissism z-score based on provided norming data (see below)

P:									the mean score (1-5) on the Psychopathy subscale	
N_zscore:							the calculated Psychopathy z-score based on provided norming data (see below)
N_percentile:						the calculated percentile of the Psychopathy z-score based on provided norming data (see below)


+ 27 individual responses			
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Norming data
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Norming data: obtained from 
https://www.psych.ubc.ca/~dpaulhus/Paulhus_measures/SD3.1.1.doc
(means and standard deviations based on a sample of 387 undergraduate students)
								
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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: