User Manual for Inquisit's Barratt Impulsiveness Scale


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									 BARRATT IMPULSIVENESS SCALE (BIS-11)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 09-17-2012
last updated:  02-17-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 02-17-2022 Millisecond Software

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BACKGROUND INFO 	
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This script implements the Barratt Impulsiveness Scale (BIS-11) described in:

Patton, J.H., Standford, M.S., & Barratt, E.S. (1995). Factor Structure of the Barratt Impulsiveness Scale.
Journal of Clinical Psychology, 51, 768-774.

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DURATION 
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the default set-up of the script takes appr. 2 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: 'bis.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 (rarely never) - 4 (almost always)
								R = automatically reversed scored questions
									
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: 'bis_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)
								
//Subscale Scores								
A_Attention:		Attention-Attention subscale score: questions 5, 9R, 11, 20R, 28, Range: 5-20
A_CogInstabile:		Attention-Cognitive Instability subscale score: questions 6, 24, 26, Range: 3-12

M_Motor:			Motor-Motor Subscale Score: questions 2, 3, 4, 17, 19, 22, 25, Range: 7-28			
M_Perserverance:	Motor-Perserverance Subscale Score: questions 16, 21, 23, 30R, Range: 4-16

NP_SelfControl:		Nonplanning-Self Control Subscale Score: questions 1R, 7R, 8R, 12R, 13R, 14, Range: 6-24
NP_CogComplex:		Nonplanning-Cognitive Complexity Subscale Score: questions 10R, 15R, 18, 27, 29R, Range: 5-20 
(R = reversed scoring, depends on wording)	

//Total Score:
totalscore:			the total score (sum of all subscale scores), Range: 30-120
						
//Individual Scores on each questions
radiobuttons.q1_R.response,
radiobuttons.q2.response,
radiobuttons.q3.response,
radiobuttons.q4.response,
radiobuttons.q5.response,
radiobuttons.q6.response,
radiobuttons.q7_R.response,
radiobuttons.q8_R.response,
radiobuttons.q9_R.response,
radiobuttons.q10_R.response,
radiobuttons.q11.response,
radiobuttons.q12_R.response,
radiobuttons.q13_R.response,
radiobuttons.q14.response,
radiobuttons.q15_R.response,
radiobuttons.q16.response,
radiobuttons.q17.response,
radiobuttons.q18.response,
radiobuttons.q19.response,
radiobuttons.q20_R.response,
radiobuttons.q21.response,
radiobuttons.q22.response,
radiobuttons.q23.response,
radiobuttons.q24.response,
radiobuttons.q25.response,
radiobuttons.q26.response,
radiobuttons.q27.response,
radiobuttons.q28.response,
radiobuttons.q29_R.response,
radiobuttons.q30_R.response

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QUESTIONNAIRE SET-UP & SCORING
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The questionnaire contains 30 questions. Each question is presented with 4 answer choices
(-> "Rarely/Never", "Occasionally", "Often", "Almost Always/Always").

Each of the questions belongs to 6 subscales (derived from 6 first order factors and 3 first order factors)

1. Attention-Attention: 5, 9R, 11, 20R, 28
2. Attention-Cognitive Instability: 6, 24, 26
3. Motor-Motor: 2, 3, 4, 17, 19, 22, 25
4. Motor-Perserverance: 16, 21, 23, 30R
5. Nonplanning-Self Control: 1R, 7R, 8R, 12R, 13R, 14
6. Nonplanning-Cognitive Complexity: 10R, 15R, 18, 27, 29R
(R = reversed scoring, depends on wording)

Scoring: on a 4-point scale
"1" for least impulsive choice to "4" for most impulsive choice
=> Minimum Score: 30
=> Maximum Score: 120