Return to the Eye Dominance Test (Porac Test) page
___________________________________________________________________________________________________________________	

									*Eye Dominance Test ('Porac Test')*
							- as part of the Behavioural Laterality Battery-									
___________________________________________________________________________________________________________________	

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 12-29-2020
last updated: 04-29-2021 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Script Copyright © 04-29-2021 Millisecond Software

___________________________________________________________________________________________________________________
BACKGROUND INFO 	
___________________________________________________________________________________________________________________	

This script implements an adaption of the Porac Test of Ocular Dominance as used by the 
Behavioural Laterality Battery (Parker et al, 2020)

References:

//Behavioural Laterality Battery:
Adam J. Parker , Zoe V. J. Woodhead , Paul A. Thompson & Dorothy V. M.
Bishop (2020): Assessing the reliability of an online behavioural laterality battery: A pre-registered
study, Laterality, DOI: 10.1080/1357650X.2020.1859526
To link to this article: https://doi.org/10.1080/1357650X.2020.1859526

https://gorilla.sc/openmaterials/104636

//Porac Test:
Porac, C., & Coren, S. (1976). Psychological bulletin, 83, 880.
https://doi.org/10.1037/0033-2909.83.5.880
___________________________________________________________________________________________________________________
TASK DESCRIPTION
___________________________________________________________________________________________________________________	

Participants are asked to determine their ocular dominance by using their thumb or index finger
and centering them on a far away object. Then they are asked to close their left eye and then the right eye
to observe the location of the object:
the eye that keeps the object stationary is defined as the 'dominant' eye 
___________________________________________________________________________________________________________________	
DURATION 
___________________________________________________________________________________________________________________	
the default set-up of the script takes appr. 1 minutes to complete

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

(1) Raw data file: 'eyedominancetest_poractest.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: RIGHT, LEFT, DON'T KNOW
									
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: 'eyedominancetest_poractest_summary.iqdat' (Inquisit Lab: one data file per participant)

computer.platform:					the platform the script was run on (win/mac/ios/android)
inquisit.build:						the version/build of Inquisit
script.startdate:					date script was run
script.starttime:					time script was started
script.subjectid:					assigned subject id number
script.groupid:						assigned group id number
script.sessionid:					assigned session id number
script.elapsedtime:					time it took to run script (in ms); measured from onset to offset of script
script.completed:					0 = script was not completed (prematurely aborted); 
									1 = script was completed (all conditions run)
									
radiobuttons.oculardominance.response: the given response (LEFT, RIGHT, DON'T KNOW)									
__________________________________________________________________________________________________________________	
INSTRUCTIONS 
___________________________________________________________________________________________________________________	
provided by Parker et al (2020)
https://gorilla.sc/openmaterials/104636