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									Ten Item Personality Inventory (TIPI)
SCRIPT INFO

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 10-11-2016
last updated:  10-12-2016 by K.Borchert for Millisecond Software LLC

Script Copyright ©  10-12-2016 Millisecond Software


BACKGROUND INFO

											*Purpose*
This script implements a computerized version of the Ten Item Personality Inventory (TIPI) described in:

Gosling, S. D., Rentfrow, P. J., & Swann, W. B. Jr. (2003). A very brief measure of the Big-Five personality domains.
Journal of Research in Personality, 37, 504–528. 


											  *Task*
10 7-point Likert questions: 2 for each of the 5 personality domains (Extraversion, Agreeableness, Conscientiousness, Emotional Stability, Openeness)


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

(1) Raw data file: 'TIPI.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)
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: 'TIPI_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)
/Extraversion:					mean Extraversion score
/Agreeableness:					mean Agreeableness score
/Conscientiousness:				mean Conscientiousness score
/EmotionalStability:			mean Emotional Stability score
/Openeness:						mean Openeness score

Norms:

/calculateGenderPercentile:		true (1) = z-score and percentiles are calculated based on gender norms (provided by Gosling et al, 2003, p.526) - can be set under Editable Parameters
								false (0) = z-score and percentiles are calculated using the overall norms (provided by Gosling et al, 2003, p.526)
radiobuttons.gender.response:	1 = female; 2 = male; empty (=> question wasn't asked)
								
/z_E:							calculated z-score of the Extraversion score (based on data provided by Gosling et al, 2003, p.526)
/E_percentile:					z-score percentile of the Extraversion score (based on data provided by Gosling et al, 2003, p.526)
/z_A:							calculated z-score of the Agreeableness score (based on data provided by Gosling et al, 2003, p.526)
/A_percentile:					z-score percentile of the Agreeableness score (based on data provided by Gosling et al, 2003, p.526)
/z_C:							calculated z-score of the Conscientiousness score (based on data provided by Gosling et al, 2003, p.526)
/C_percentile:					z-score percentile of the Conscientiousness score (based on data provided by Gosling et al, 2003, p.526)
/z_ES:							calculated z-score of the Emotional Stability score (based on data provided by Gosling et al, 2003, p.526)
/ES_percentile:					z-score percentile of the Emotional Stability score (based on data provided by Gosling et al, 2003, p.526)
/z_O:							calculated z-score of the Openeness score (based on data provided by Gosling et al, 2003, p.526)
/O_percentile:					z-score percentile of the Openeness score (based on data provided by Gosling et al, 2003, p.526)


QUESTIONNAIRE SET-UP
10 7-point Likert questions
- 2 for each of the 5 personality domains (Extraversion, Agreeableness, Conscientiousness, Emotional Stability, Openeness)
- one of the two questions is reversed scored (automatically done by the program)
- if parameters.calculateGenderPercentile is set to 'true', a gender question is provided at the end of the questionnaire
(by default, the gender question is omitted)

Scoring:
* computer automatically calculates the average score for the 5 categories
* computer automatically calculates the z-score and percentile values of the 5 scores based on data published by
Gosling et al (2003)
-> by default, overall means across gender and ethnic groups are used
-> if parameters.calculateGenderPercentile is set to 'true', percentiles are calculated based on the reported gender
(across ethnic groups)


INSTRUCTIONS
slightly adapted from Gosling et al (2003) to reflect a different testing setup.

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 posted on top of each page of the questionnaire

/calculateGenderPercentile:				true (1) = z-score and percentiles are calculated based on gender norms (provided by Gosling et al, 2003)
										false (0) = z-score and percentiles are calculated using the overall norms (provided by Gosling et al, 2003) (default)


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