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									SHORT-FORM REVISED EYSENCK PERSONALITY QUESTIONNAIRE(EPQR-S)
SCRIPT INFO

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 08-05-2016
last updated:  08-16-2016 by K.Borchert for Millisecond Software LLC

Script Copyright ©  08-16-2016 Millisecond Software


BACKGROUND INFO

											*Purpose*
This script implements an electronic version of the Short-Form Revised Eysenck Personality Questionnaire (EPQR-S)
originally published in:

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


											  *Task*
48 yes/no questions: 12 questions on each of 4 scales (Extraversion, Neuroticism, Psychoticism, Lie Scale)											  


DATA FILE INFORMATION: 
The default data stored in the data files are:

(1) Raw data file: 'EPQR_S.iqdat'

date, time, group, subject:		date and time script was run with the current group/subjectnumber 
build:							the Inquisit build 

q*_response:					response given (in assigned values -> reversed scoring automatically taken into account)
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: 'EPQR_S_summary.iqdat' (Inquisit Lab: one data file per participant)

script.startdate:				date script was run
script.starttime:				time script was started
script.subjectid:				subject id number
script.groupid:					group id number
script.elapsedtime:				time it took to run script (in ms)
computer.platform:				the platform the script was run on
/completed:						0 = script was not completed (prematurely aborted); 1 = script was completed (all conditions run)

/gender:						response to gender question
/age:							response to age question

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

/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)
/z_P:							calculated z-score of the Psychoticism score (based on data provided by Eysenck et al, 1985)
/P_percentile:					z-score percentile of the Psychoticism score (based on data provided by Eysenck et al, 1985)
/Psychoticism: 					score on the subscale "Psychoticism"
/Lie: 							score on the subscale "Lie"
/z_L:							calculated z-score of the Lie score (based on data provided by Eysenck et al, 1985)
/L_percentile:					z-score percentile of the Lie score (based on data provided by Eysenck et al, 1985)


QUESTIONNAIRE SET-UP
48 yes/no questions: 12 questions on each of 4 scales (Extraversion, Neuroticism, Psychoticism, Lie Scale)	

Scoring:
yes = 1 point, No = 0 point (Reversed where indicated, Eysenck et al, 1985, p.25)

NORMS
z-scores and percentiles of the 4 subscores are calculated based on data provided by Eysenck et al (1985), p.24 (table 6)
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
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