Michigan Alcohol Screening Test Revised - MAST

Technical Manual

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

Created: January 31, 2013

Last Modified: January 08, 2025 by K. Borchert (katjab@millisecond.com), Millisecond

Script Copyright © Millisecond Software, LLC

Background

This script implements the revised Michigan Alcohol Screening Test (MAST) with 22* YES/NO questions for a self-assessment of social and vocational issues related to heavy drinking. The original MAST, with a more elaborate scoring system, was published by Selzer (1971).

References

Selzer, M.L. (1971). The Michigan Alcoholism Screening Test: The quest for a new diagnostic instrument. Am J Psychiatry, 127, 1653-1658.

https://www.ou.edu/cwtraining/assets/pdf/handouts/1009/revMAST.pdf

Duration

2 minutes

Description

Questionnaire with 22 binary yes-no questions.

Summary Data

File Name: revmast22_summary*.iqdat

Data Fields

NameDescription
inquisit.version Inquisit version number
computer.platform Device platform: win | mac |ios | android
computer.touch 0 = device has no touchscreen capabilities; 1 = device has touchscreen capabilities
computer.hasKeyboard 0 = no external keyboard detected; 1 = external keyboard detected
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
totalScore Sum of all responses, Range: 0-22 (The higher, the higher the 'alcoholic' response pattern)
textbox.q23.response The response to question 23 (number of arrests)

Raw Data

File Name: revmast22.iqdat

Data Fields

NameDescription
date Date the session was run
time Time the session was run
subject Participant ID
group Group number
session Session number
build Inquisit version number
q*_response Response given (in assigned values)
Scale: 1 (yes = 'alcoholic response') - 0 (no)
R = automatically reversed scored questions
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)