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										Flow Short Scale
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 10-02-2017
last updated:  01-06-2020 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 01-06-2020 Millisecond Software

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BACKGROUND INFO 	
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This script implements a computerized version of the Flow Short Scale to study intrinsic motivation.

'Flow' = positive feeling of balance btw. challenges of tasks and personal abilities to tackle them.
It can further be characterized as a psychological state in which the person feels simultaneously cognitively efficient, 
motivated, and happy without apparent external rewards (see Moneta & Csikszentmihalyi 1996, as cited in: Engeser & Rheinberg, 2008).

The implemented procedure is based on:

Engeser, S. & Rheinberg, F. (2008). Flow, performance and moderators of challenge-skill balance.
Motiv Emot, 32:158–172.

with three additional (optional) questions based on:

Keller, J., & Landhäußer, A. (2011). Im Flow sein: Experimentelle Analysen des Zustands optimaler
Beanspruchung [Experiencing fl ow: Experimental analyses of the experiential state
resulting from optimal task demands]. Psychologische Rundschau, 62 , 213–220.

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OVERVIEW
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A 10-item, 7-point Likert scale self-report questionnaire with 6 items measuring subscale 
"Fluency of Performance" and 4 items measuring subscale "Absorption by Activity" 
and additional 3 questions, 9-point Likert scales.	
Three optional questions suggested by Keller & Landhäußer (2011) can be run if 
parameters.runAdditionalQuestions is set to true under section 'Editable Parameters'									  
											  
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DURATION 
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the default set-up of the script takes appr. 1.5 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: 'flowshortscale_survey.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)
								q1-q10: questions on 2 subscales by Engeser & Rheinberg (2008) 
								A = absorption by activity;
								PF = performance fluency
									* 7 point Likert scale (range:1-7)
								q1_addOn-q3_addOn: questions by Keller & Landhäußer (2011) - OPTIONAL (see parameters.runAdditionalQuestions)
									* 7 point Likert scale (range:1-7); same scale as q1-q10
								
								q11-q13: additional questions by Engeser & Rheinberg (2008)
									* 9 point Likert scale (range: 1-9)

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: 'flowshortscale_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)

expressions.total:						sum of 'performance fluency' and 'absorption' scores (range: 10-70)

expressions.PerformanceFluency:		subtotal on scale 'fluency of performance' (Range: 6-42)
									the higher the score, the higher the reported performance fluency
									
expressions.Absorption :				subtotal on scale 'absorption by activity' (Range: 4-28)								
									the higher the score, the higher the reported activity absorption
																
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QUESTIONNAIRE SET-UP & SCORING
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(1)q1-q10: questions on 2 subscales by Engeser & Rheinberg (2008) 
	- 4 questions 'absorption by activity': q1, q3, q6, q10
	- 6 questions 'performance fluency': q2, q4, q5, q7, q8, q9
* 7 point Likert scale (range:1-7)

(2) q1_addOn-q3_addOn: questions by Keller & Landhäußer (2011) - optional (see parameters.runAdditionalQuestions)
* 7 point Likert scale (range:1-7); same scale as q1-q10
								
(3) q11-q13: additional questions by Engeser & Rheinberg (2008)
* 9 point Likert scale (range: 1-9)

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INSTRUCTIONS 
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Instructions are based on: 

Jackson, S.A., & Marsh, H.W. (1996). Development and validation of a scale to measure
optimal experience: The flow state scale. Journal of Sport & Exercise Psychology,
18, 17–35.

They can be edited 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 default instructions displayed on each surveypage

/runAdditionalQuestions:	true (1) = the optional questions by Keller, J., & Landhäußer, A. (2011) are run
						false (0) = the optional questions by Keller, J., & Landhäußer, A. (2011) are skipped (default)