Return to the Demetrovics et al (2016) page
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				*Problematic Internet Use Questionnaire Short Form 6 (PIUQ-SF-6)*
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 12-18-2020
last updated: 12-18-2020 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Script Copyright © 12-18-2020 Millisecond Software


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BACKGROUND INFO 	
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This script implements the Problematic Internet Use Questionnaire-Short Form-6 (PIUQ-SF-6) 
by Demetrovics et al (2016). The PIUQ-SF-6 was created as a brief screening survey for
adolescents.

Reference

PIUQ-SF_6:
Demetrovics Z, Király O, Koronczai B, Griffiths MD, Nagygyörgy K, Elekes Z, et al. (2016)
Psychometric Properties of the Problematic Internet Use Questionnaire Short-Form (PIUQ-SF-6) in a
Nationally Representative Sample of Adolescents. 
PLoS ONE 11(8): e0159409. doi:10.1371/journal.pone.0159409

original PIUQ (18 items):
Demetrovics, Z., Szeredi, B., & Rózsa, S. (2008). The three-factor model of Internet addiction: 
The development of the Problematic Internet Use Questionnaire. Behavior Research Methods, 40, 563-574.

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OVERVIEW
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6 questions, 5-point Likert Scale (never - always)

Items belong to three subscales: 
Obsession: 2,6
Neglect: 1,5
Control disorder: 3,4

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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: 'piuq.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 (never) - 5 (always)
									no 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: 'piuq_sf_6_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)
									
/numberMissingItems:				the number of questions that have not been answered 
Note: by default settings, all questions are required to be answered. However, that setting can be changed.
If default setting is changed, the above variable can be used as a flag.

//Total and Subscale Scores: scored on scale: 1 (never) to 5 (always)
piuq_sf_6_total:						the total score (range: 6-30)
Note: 
Demetrovics et al (2016, table 5) suggest 15 as the cut-off value indicating problematic internet use
in adolescents

piuq_sf_6_Obsession:					the score on subscale 'obsession' (range: 2-10) 
piuq_sf_6_Neglect:						the score on subscale 'neglect' (range: 2-10)  
piuq_sf_6_ControlDisorder:				the score on subscale 'controldisorder' (range: 2-10) 									
+ z-scores and percentiles if applicable
									
+ responses to individual items
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QUESTIONNAIRE SET-UP & SCORING
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6 questions, 5-point Likert Scale (never - always)

Items belong to three subscales: 
Obsession: 2,6
Neglect: 1,5
Control disorder: 3,4

Scoring:
Each question is scored on a scale 1 (never) to 5 (always)
A subscale score is computed for each of the 3 subscales based on the sum of the individual responses.
The Total PIUQ-SF-6 score is based on the sum of all responses.