Return to the Beck Depression Inventory (Original) page
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									BECK'S DEPRESSION INVENTORY (BDI)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 07-29-2014
last updated:  11-07-2019 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 11-07-2019 Millisecond Software

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BACKGROUND INFO 	
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This script implements the Beck's Depression Inventory (BDI) introduced in:

Beck, AT, Ward, CH, Mendeson, M, Mock, J. & Erbaugh, J. (1961). An Inventory for Measuring Depression. 
Archives of General Psychiatry,6 , 561-571.

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OVERVIEW
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21-question multiple-choice self-report inventory 

Note: by default, all questions require a response. To change, go to section QUESTIONS
and follow instructions
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DURATION 
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the default set-up of the script takes appr. 3 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: 'bdi_orig.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: 0-3 with additional letters to reference response subcategories)
q*_latency:						how much time the participant spent on the surveypage with this particular question
									(the last time this particular surveypage was visited)

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

Computer Platform:				the platform the script was run on (win/mac/ios/android)
Date:							date script was run
Time:							time script was started
Subject ID:						assigned subject id number
Group ID:						assigned group id number
Session ID:						Session ID (if repeated measure design)
Script Duration:					time it took to run script (in ms)
Script Completion:				0 = script was not completed (prematurely aborted); 
								1 = script was completed (all conditions run)

q1-
q21:								the numeric score (minus the letter suffix) for each question

totalscore_bdi:					the sum of all numeric scores (range: 0-63)
assessment:						According to: http://en.wikipedia.org/wiki/Beck_Depression_Inventory
									0–9: indicates minimal depression;
									10–18: indicates mild depression;
									19–29: indicates moderate depression; 
									30–63: indicates severe depression. 
									Higher total scores indicate more severe depressive symptoms.

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INSTRUCTIONS 
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no instructions published in Beck et al (1961). The provided instructions can be easily edited
under section Editable Parameters.

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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.

The parameters you can change are:

/pageinstructions:			the instructions that appear at the top of each surveypage