Revised Eysenck Personality Questionnaire - EPQR

Technical Manual

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond

Created: August 08, 2016

Last Modified: June 12, 2023 by K. Borchert (katjab@millisecond.com), Millisecond

Script Copyright © Millisecond Software, LLC

Background

This script implements an electronic version of the Revised Eysenck Personality Questionnaire (EPQR) originally published in Eysenck et al (1985).

References

Eysenck, S. B. G., Eysenck, H. J., & Barrett, P. (1985). A revised version of the psychoticism scale. Personality and Individual Differences. 6, 21-29.

Duration

6 minutes

Description

100 yes/no questions on 4 subscales: Extraversion (23), Neuroticism (24), Psychoticism (32), Lie Scale (21)

Instructions

slightly altered from Eysenck et al (1985) - edit under section Editable Parameters

Scoring

Norms
Norms use data reported for the EPQR_S by Eysenck et al (1985, p.24, table 6);
• Norms for ages < 16 AND ages > 70 use the overall mean and standard deviation by default (no separate data provided for these age groups)
• Norms for gender = other: the female norms are used by default
• percentiles and z-score are only calculated if parameters.calculatePercentiles == true

Summary Data

File Name: epqr_summary.iqdat' (Inquisit Lab: one data file per participant)

Data Fields

NameDescription
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
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
completed 0 = Test was not completed
1 = Test was completed
radioButtons.gender.response Response to gender question
dropdown.age.response Response to age question
age The assigned age category
extraversion Score on the subscale "Extraversion"
zE Calculated z-score of the Extraversion score (based on data provided by Eysenck et al, 1985)
ePercentile Z-score percentile of the Extraversion score (based on data provided by Eysenck et al, 1985)
neuroticism Score on the subscale "Neuroticism"
zN Calculated z-score of the Neuroticism score (based on data provided by Eysenck et al, 1985)
nPercentile Z-score percentile of the Neuroticism score (based on data provided by Eysenck et al, 1985)
psychoticism Score on the subscale "Psychoticism"
zP Calculated z-score of the Psychoticism score (based on data provided by Eysenck et al, 1985)
pPercentile Z-score percentile of the Psychoticism score (based on data provided by Eysenck et al, 1985)
lie Score on the subscale "Lie"
zL Calculated z-score of the Lie score (based on data provided by Eysenck et al, 1985)
lPercentile Z-score percentile of the Lie score (based on data provided by Eysenck et al, 1985)

Raw Data

File Name: epqr.iqdat

Data Fields

NameDescription
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 (yes) - 0 (no)
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)

Parameters

The procedure can be adjusted by setting the following parameters.

NameDescriptionDefault
pageInstructions The instructions that appear at the top of each surveyPage
calculatePercentiles True (default)= script automatically calculates the z-score and corresponding percentile based on Eysenck et al (1985), p.23 (table 2)
(setting this parameter to true runs the demographic 'age' and 'gender' questions)
false = script does not automatically calculate z-score and corresponding percentile