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EAT-26 (Eating Attitudes Test)
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 12-08-2016
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 EAT- 26 (Eating Attitudes Test) as described in:
Garner, D.M., Olmsted, M.P., Boh, Y. & Garfinkle, P.E. (1982). The Eating Attitudes Test: Psychometric features and
clinical correlates. Psychological Medicine, 12, 871-878
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OVERVIEW
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26 6-point Likert questions
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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: 'eat26.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)
Note: Scoring:
q1-q25: always (3). usually (2), often (1) - the remaining answer choices (0)
q26: reversed coded
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: 'eat_26_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)
EAT26_total: the total score
Note: Scoring:
q1-q25: always (3). usually (2), often (1) - the remaining answer choices (0)
q26: reversed coded
Note:
Norms are calculated based on data published by Garner et al. (1982).
The mean and standard deviation used in this script are derived from a group of female college students (N = 140)
zscore: the z-score of the EAT27 Total Score with mean = 9.9 and sd = 9.2
pvalue: the percentile of the EAT27 zscore
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NORMS
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Norms are calculated based on data published by Garner et al. (1982).
The mean and standard deviation used in this script are derived from a group of female college students (N = 140)
Mean = 9.9, SD = 9.2 (see Garner et al., 1982, table 2)
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INSTRUCTIONS
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can be 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-
/pageinstructions2: the presented page instructions
Norming Statistics: The mean and standard deviation used in this script are derived from a group of female college students (N = 140)
(see Garner et al., 1982, table 2)
/mean = 9.9
/sd = 9.2