User Manual: Inquisit Perceived Stress Scale (PSS-10)


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								Perceived Stress Scale (PSS-10)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 09-27-2023
last updated:  10-03-2023 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 10-03-2023 Millisecond Software


The Spanish translations were generously shared by Marta Becerra Losada


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BACKGROUND INFO 	
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This script implements Millisecond's computerized version of the Perceived Stress Scale (PSS-10).
The Perceived Stress Scale was originally suggested as a 14-item scale (PSS-14, Cohen et al, 1983) and later
shortened to 10 items (Cohen & Williamson, 1988).

"Items in the PSS-10 were designed to tap how unpredictable, uncontrollable, and overloading respondents find their lives" 
(Cohen & Janicki-Deverts, 2012, p. 1323)

References:

Cohen, S., Kamarck, T., & Mermelstein, R. (1983). A global measure of perceived stress. 
Journal of Health and Social Behavior, 24, 386-396.

Cohen, S., & Williamson, G. (1988). Perceived stress in a probability sample of the U.S. In S. Spacapam & S. Oskamp (Eds.), 
The social psychology of health: Claremont Symposium on Applied Social Psychology. Newbury Park, CA: Sage.

Cohen, S., & Janicki-Deverts, D. (2012). Who's stressed? Distributions of psychological stress in the United States in 
probability samples from 1983, 2006 and 2009.  
Journal of Applied Social Psychology, 42, 1320-1334.  
(This article provides NORMATIVE DATA for the PSS-10 from US samples in 1983, 2006 and 2009)

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OVERVIEW
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self-report measure consisting of 10 5-point Likert Scale questions on a scale from (0 = never to 4 = very often)
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DURATION 
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the default set-up of the script takes appr. 2 minute to complete

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DATA OUTPUT DICTIONARY
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The fields in the data files are:

(1) Raw data file: 'pss_10.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="never" to 4= "very often")
								R: reversed coded questions (if any)
									
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: 'pss_10_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)