User Manual: Inquisit Mini IPIP (International Personality Item Pool)


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								Mini IPIP
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 09-28-2023
last updated:  09-28-2023 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 09-28-2023 Millisecond Software

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BACKGROUND INFO 	
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This script implements Millisecond's computerized version of the MiniIPIP, a short measure of the 
Big Five factors of personality introduced by Donnellan et al (2006). The MiniIPIP is a 20 question survey using 
a subset of the IPIP  (International Personality Item Pool) items used by the 50-item IPIP representation 
of the Big-Five lexical markers (Goldberg, 1992).

The IPIP data base is in the open domain as are all measures/scales using them. 
No permission is needed to use any of these scales (https://ipip.ori.org/newPermission.htm).

Reference:

Donnellan, M. B., Oswald, F. L., Baird, B. M., & Lucas, R. E. (2006). 
The Mini-IPIP scales: Tiny-yet-effective measures of the Big Five factors of personality. 
Psychological Assessment, 18, 192-203.

The reference for the original lexical scales on which the IPIP lexical Big-Five inventory is based
Goldberg, L. R. (1992). The development of markers for the Big-Five factor structure. Psychological Assessment, 4, 26-42.

IPIP item pool and general information about IPIP surveys: https://ipip.ori.org

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OVERVIEW
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self-report measure consisting of 20 5-point Likert Scale questions using 4 IPIP items each assessing the big 5 
personality factors (Extraversion, Agreeableness, Conscientiousness, Neuroticism, Imagination)
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DURATION 
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the default set-up of the script takes appr. 2 minute to complete

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

(1) Raw data file: 'mini_ipip.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 (very inaccurate) - 5 (very accurate)
								R: reversed coded questions
								E = Extraversion
								A = Agreeableness
								C = Conscientiousness 
								N = Neuroticism
								I = Imagination
									
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: 'mini_ipip_summary*.iqdat' (a separate file for each 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)	
															
miniIPIP_Extraversion: 			sum of q1_E,q6R_E,q11_E,q16R_E, Range: 4-20 => higher scores imply higher Extraversion
miniIPIP_Agreeableness: 		sum of q2_A,q7R_A,q12_A,q17R_A, Range: 4-20 => higher scores imply greater Agreeableness
miniIPIP_Conscientiousness: 	sum of q3_C,q8R_C,q13_C,q18R_C, Range: 4-20 => higher scores imply greater Conscientiousness
miniIPIP_Neuroticism: 			sum of q4_N,q9R_N,q14_N,q19R_N, Range: 4-20 => higher scores imply higher degree of Neuroticism (less Emotional Stability)
miniIPIP_Imagination: 			sum of q5_I,q10R_I,q15R_I,q20R_I, Range: 4-20 => higher scores imply higher level of Imagination

+ individual responses