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									LOCUS OF CONTROL SCALE
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 05-12-2017
last updated:  10-09-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 10-09-2019 Millisecond Software

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BACKGROUND INFO 	
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This script implements a computerized version of the Rotter's Locus of Control Scale as published in:

Rotter, J.B. (1966). "Generalized expectancies of internal versus external control of reinforcements". 
Psychological Monographs, 80, 1-18.

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OVERVIEW
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23 2-FC questions regarding locus of control (external vs. internal) and 6 filler questions 										

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DURATION 
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the default set-up of the script takes appr. 5 minutes 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: 'locusofcontrolscale.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: 0 (for internal choice) - 1 (for external choice)
									Note: external choice can be either a) or b)
									
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: 'locusofcontrolscale_summary.iqdat' (Inquisit Lab: one data file per participant)

computer.platform:				the platform the script was run on (win/mac/ios/android)
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)

textbox.age.response:				contains the response to the age question (if answered)
radiobuttons.gender.response:		contains the response to the gender question (if answered)
expressions.IEscore:				contains the total IE score = number of EXTERNAL choices
expressions.IEscore_percentile:		contains the percentile  (see Rotter, 1966, Appendix B, Table B1, percentiles calculated across male/female frequency)							
values.IEscore_percentile_gender:	contains the percentile by gender (see Rotter, 1966, Appendix B, Table B1) if gender is known (otherwise => "not determined")
																
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QUESTIONNAIRE SET-UP & SCORING
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23 2-FC questions regarding locus of control and 6 filler questions 
- the total score is the number of external choices
- percentiles calculated based on data published by Rotter (1966) (gender-specific)

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INSTRUCTIONS 
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main instructions were taken from Rotter (1966) and adapted to the computer;
edit under section Editable Parameters

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EDITABLE CODE 
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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 initial instructions presented