The Reward-Based Eating Drive Scale - RED-5

Technical Manual

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond

Created: January 26, 2023

Last Modified: January 26, 2023 by K. Borchert (katjab@millisecond.com), Millisecond

Script Copyright © Millisecond Software, LLC

Background

This script implements Millisecond's computerized version of The Reward Based Eating Drive (RED) Scale (9 item scale)

Survey downloaded from: https://www.sealab.ucsf.edu/red-scale

References

Vainik, U., Han, C., Epel, E.S., Dagher, A., & Mason, A.E. (2019). Rapidly assessing reward-related eating: The RED-X5. Obesity

Duration

0.5 minutes

Overview

self-report measure consisting of 5 5-point Likert Scale questions

Summary Data

File Name: red_summary*.iqdat

Data Fields

NameDescription
inquisit.version Inquisit version number
computer.platform Device platform: win | mac |ios | android
startDate Date the session was run
startTime Time the session was run
subjectId Participant ID
groupId Group number
sessionId Session number
elapsedTime Session duration in ms
completed 0 = Test was not completed
1 = Test was completed
red5Total Sum of all individual scores (Range: 0-20), rated on scale 0 (Strongly Disagree) - 4 (Strongly Agree)
+ all individual responses

Raw Data

File Name: red.iqdat

Data Fields

NameDescription
date Date the session was run
time Time the session was run
subject, group, session With the current subject/groupnumber/session id
build Inquisit version number
q*_response Response given (in assigned values)
Scale: 0 (Strongly Disagree) - 4 (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)