___________________________________________________________________________________________________________________ EYSENCK PERSONALITY QUESTIONNAIRE BRIEF VERSION (EPQ-BV) ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 08-09-2016 last updated: 02-22-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-22-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements an electronic version of the Eysenck Personality Questionnaire Brief Version (EPQ-BV) originally published in: Satu, P. (2005). The Eysenck Personality Questionnaire Brief Version: Factor Structure and Reliability. The Journal of Psychology, 139(6), 545–552. based on: Eysenck, S. B. G., Eysenck, H. J., & Barrett, P. (1985). A revised version of the psychoticism scale. Personality and Individual Differences. 6, 21-29. Notes: Norms provided in this script are reported by Eysenck et al (1985) for the EPQR-S which contains an additional lie scale as well as as the Psychoticism scale. The questions for the Extraversion/Neuroticism scale are almost identical. ___________________________________________________________________________________________________________________ OVERVIEW ___________________________________________________________________________________________________________________ 24 yes/no questions: 12 questions on each of 2 scales (Extraversion, Neuroticism) ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 1 minute to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'epq_bv.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 (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) (2) Summary data file: 'epq_bv_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) radiobuttons.gender.response: response to gender question dropdown.age.response: response to age question age: the assigned age category Notes: Norms use data reported for the EPQR_S by Eysenck et al (1985, p.24, table 6); no separate norms reported by Satu (2005) * 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 Extraversion: score on the subscale "Extraversion" z_E: calculated z-score of the Extraversion score (based on data provided by Eysenck et al, 1985) E_percentile: z-score percentile of the Extraversion score (based on data provided by Eysenck et al, 1985) Neuroticism: score on the subscale "Neuroticism" z_N: calculated z-score of the Neuroticism score (based on data provided by Eysenck et al, 1985) N_percentile: z-score percentile of the Neuroticism score (based on data provided by Eysenck et al, 1985) ___________________________________________________________________________________________________________________ QUESTIONNAIRE SET-UP/SCORING/NORMS ___________________________________________________________________________________________________________________ 24 yes/no questions: 12 questions on each of 2 scales (Extraversion, Neuroticism) Scoring: yes = 1 point, No = 0 point (Reversed where indicated, Satu, 2005) NORMS z-scores and percentiles of the 4 subscores are calculated based on data provided by Eysenck et al (1985), p.24 (table 6) for the EPQR-S (no separate norms reported by Satu, 2005) Notes: * 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 ___________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ slightly altered from Eysenck et al (1985) - edit under 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 /calculatePercentiles: true (default)= script automatically calculates the z-score and corresponding percentile based on Eysenck et al (1985), p.24 (table 6) (setting this parameter to true runs the demographic 'age' and 'gender' questions) false = script does not automatically calculate z-score and corresponding percentile