Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond
Created: July 01, 2021
Last Modified: June 01, 2026 by K. Borchert (katjab@millisecond.com), Millisecond
Script Copyright © Millisecond Software, LLC
This script implements the Short Dark Triad Questionnaire (SD3) to assess the 'dark triad' of the three socially aversive traits: Machiavellianism, narcissism, and psychopathy (Jones & Paulhus, 2013).
Jones, D. & Paulhus, D. (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norming data) at: https://www.psych.ubc.ca/~dpaulhus/Paulhus_measures/SD3.1.1.doc (as of 06/01/2026: the reference is obsolete)
3 minutes
File Name: sd3_summary.iqdat
| Name | Description |
|---|---|
| startDate | Date the session was run |
| startTime | Time the session was run |
| subjectId | Participant ID |
| groupId | Group number |
| sessionId | Session number |
| elapsedTime | Session duration in ms |
| inquisit.version | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| computer.touch | 0 = device has no touchscreen capabilities; 1 = device has touchscreen capabilities |
| computer.hasKeyboard | 0 = no external keyboard detected; 1 = external keyboard detected |
| completed | 0 = Test was not completed 1 = Test was completed |
| m | The mean score (1-5) on the Machiavellianism subscale |
| mZScore | The calculated Machiavellianism z-score based on provided norming data (see below) |
| mPercentile | 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 |
| nZScore | The calculated Narcissism z-score based on provided norming data (see below) |
| nPercentile | 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 |
| nZScore | The calculated Psychopathy z-score based on provided norming data (see below) |
| nPercentile | The calculated percentile of the Psychopathy z-score based on provided norming data (see below) |
File Name: sd3.iqdat
| Name | Description |
|---|---|
| date | Date the session was run |
| time | Time the session was run |
| subject | Participant ID |
| group | Group number |
| session | Session number |
| build | Inquisit version number |
| 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) |
The procedure can be adjusted by setting the following parameters.
| Name | Description | Default |
|---|---|---|
| pageInstructions | The instructions that appear on each survey page | " |