Return to the SUPPS-P Impulsive Behavior Scale page
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									  SUPPS-P IMPULSE BEHAVIOR SCALE (short UPPS-P)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 01-28-2013
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 the SUPPS-P impulsive behavior scale as discussed in:

Cyders, MA, Littlefield, AK, Coffey, S, Karyadi, KA (2014).
Examination of a short English version of the UPPS-P Impulsive
Behavior Scale. Addictive Behaviors 39 (2014) 1372–1376.

The original UPPS/UPPS-P scale was published by:

Whiteside, S. P., & Lynam, D. R. (2001). The Five Factor Model and impulsivity: using a structural 
model of personality to understand impulsivity. Personality and Individual Differences, 30(4), 669-689

and made availabe at: http://www1.psych.purdue.edu/~dlynam/uppspage.htm

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OVERVIEW
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20 4-point Likert Questions regarding impulsive behavior

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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: 'supps.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; responses DO reflect reversed scoring) 
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)

Items are initially scored on a scale from 1 (strongly agree) to 4 (strongly disagree)
Items are then automatically reversed-scored where appropriate to reflect that higher values indicate more impulsive behavior

(2) Summary data file: 'supps_p_summary*.iqdat' (a separate file for each 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)

Summarydata for each participant: file saves the scores for the subscales and totalscore (responses are reversed scored if appropriate)
Min (4) - Max (16) for each Subscale
Min (20) - Max (80) for totalscore => higher values indicate more impulsive behavior

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QUESTIONNAIRE SET-UP & SCORING
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5 facets:

1) Negative Urgency (NURG): 6(R), 8(R), 13(R), 15(R)
"measures an individual’s tendency to act “impulsively” under conditions of negative affect" *

2) (lack of) Premeditation (PREM): 2, 5, 12, 19
"assesses an individual’s tendency to act without consideration of the potential consequences of the behavior" *

3) (lack of) Perseverance (PERS): 1, 4, 7, 11
"assesses an individual’s tendency to give up in the face of boredom, fatigue, or frustration." *

4) Sensation Seeking (SS): 9(R), 14(R), 16(R), 18(R)
"refers to an individual’s interest in and tendency to pursue activities that are exciting and novel" *

5) Positive Urgency (PURG): 3(R), 10(R), 17(R), 20(R)
"Positive Urgency, assesses an individual’s tendency to give in to impulses under conditions of high positive affect." *

(R) = reversed scoring

Items are initially scored on a scale from 1 (strongly agree) to 4 (strongly disagree)
Items are then automatically reversed-scored where appropriate to reflect that higher values 
indicate more impulsive behavior


Note: Cyders et al (2014, table1) report to reverse score items that would actually result in lower 
scores for more impulsive behavior, despite the fact they also write that "Items with an (R) are reverse coded, 
so that higher values indicate more impulsive behavior".

Example q1: "I generally like to see things through to the end.* (R)"
"On a four point scale from 1 (strongly agree) to 4 (strongly disagree)", if one strongly agrees with this statement, 
the initial score of '1' would end up being coded as '4' as it's a R item; 
yet we think that agreeing to this statement is the opposite of impulsive behavior and should result in a 
low score not a high one.

In this script, we have thus coded all items in such a way that high scores on each question reflect a higher
degree of impulsivity. You can check the coding of each question under section QUESTIONS.
The final scores for each question can be referred from "/optionvalues"

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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.