Return to the Snaith Hamilton Pleasure Scale (SHAPS) page
___________________________________________________________________________________________________________________	

								*The Snaith Hamilton Pleasure Scale (SHAPS)*
___________________________________________________________________________________________________________________

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 03-06-2018
last updated:  10-28-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 10-28-2019 Millisecond Software

___________________________________________________________________________________________________________________
BACKGROUND INFO 	
___________________________________________________________________________________________________________________	
This script implements a computerized version of the Snaith Hamilton Pleasure Scale (SHAPS) as described in:

Snaith RP, Hamilton M, Morley S, Humayan A, Hargreaves D, Trigwell P. (1995). A scale  
for the assessment of hedonic tone the Snaith-Hamilton Pleasure Scale. Br J Psychiatry.Jul;167(1):99-103 

___________________________________________________________________________________________________________________
OVERVIEW
___________________________________________________________________________________________________________________	
14 4-point Likert scale items (when scored the scale gets simplified into binary categories); self-report

___________________________________________________________________________________________________________________	
DURATION 
___________________________________________________________________________________________________________________	
the default set-up of the script takes appr. 1.5 minutes to complete

___________________________________________________________________________________________________________________	
DATA FILE INFORMATION 
___________________________________________________________________________________________________________________
The default data stored in the data files are:

(1) Raw data file: 'shaps.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)
								4 = strongly disagree, 3 = disagree, 2 = agree, 1 = strongly agree	
								
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: 'shaps_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.SHAPS_TotalScore:		the total score based on all simplified question scores (Range: 0-14)
									strongly disagree/disagree => 1 point
									strongly agree/agree => 0 point
									(the lower the score the more pleasure experienced)
									
values.q1:							the simplified score for question 1
									strongly disagree/disagree => 1 point
									strongly agree/agree => 0 point
									
radiobuttons.q1.response:				question 1 raw response: 
									4 = strongly disagree, 
									3 = disagree, 
									2 = agree, 
									1 = strongly agree
(same for the remaining questions)

___________________________________________________________________________________________________________________	
INSTRUCTIONS 
___________________________________________________________________________________________________________________	
see section Editable Parameters

___________________________________________________________________________________________________________________	
EDITABLE CODE 
___________________________________________________________________________________________________________________	
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 instructions that appear at the top of each surveypage