___________________________________________________________________________________________________________________ The Reward Based Eating Drive (RED) Scale (13 item scale) ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 09-26-2023 last updated: 09-26-2023 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 09-26-2023 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script implements Millisecond's computerized version of The Reward Based Eating Drive (RED) Scale (13 item scale) survey downloaded from: https://www.sealab.ucsf.edu/red-scale Reference: Mason, A.E., Vainik, U., Acree, M., Tomiyama, A.J., Dagher, A., Epel, E.S., & Hecht F.M. (2017). Improving assessment of the spectrum of reward-related eating: The RED-13. Frontiers in Psychology, May 30;8:795. ___________________________________________________________________________________________________________________ OVERVIEW ___________________________________________________________________________________________________________________ self-report measure consisting of 13 5-point Likert Scale questions ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 2 minutes to complete __________________________________________________________________________________________________________________ DATA OUTPUT DICTIONARY ___________________________________________________________________________________________________________________ The fields in the data files are: (1) Raw data file: 'red.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 (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) (2) Summary data file: 'red_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) red13Total: sum of all individual scores (Range: 0-52) , rated on scale 0 (Strongly Disagree) - 4 (Strongly Agree) + all individual responses