Stanford University, Fall 2006

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Drink Doctor

• A conceptual captology design by
• Andrew Gadson, Brett Hofer, Amos Schallich

Design Challenge To design a mobile application
that persuades college students to live healthier
lives. Time limit 15 hours
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Drink Doctor

• Persuasive Purpose
• To encourage college students who choose to
  drink alcohol to exhibit responsible drinking
  habits and avoid the dangers of binge drinking.

Industrial Design
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User Description

• College freshman who arrive at school and find
  themselves confronted with easy access to alcohol
  and frequent social drinking.
• Students with prior drinking experience who want
  to make sure that they reach a safe and desirable
  level of intoxication.

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Freshmens First Friday
Friday night, everyone gets together before the
parties. Some students choose to drink before
going out.
Tim has never drank before. He decides to give it
a try, but he remembers to turn on his phones
DrinkDoctor application!
Tim is a new freshman. Hes excited to start
classes and enjoy the college party scene.
Everyones in a hurry to go party, so they drink
very fast. Tim has the equivalent of 5 drinks in
just 15 minutes.
James asks Tim to have another drink, but
DrinkDoctor reminds Tim he may not feel the
alcohols full effect yet. He decides to pass.
Tim goes out to the parties, has a great time,
and returns to his dorm safely. Tim has really
enjoyed his first Friday night at college.
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Drink Doctor Prototype
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Features/Functionality

• Customizable profile based on weight and gender.
• Tracks BAC as you drink according to number of
  drinks and time elapsed
• Provides warnings and advice via pictures and
  text as you become increasingly intoxicated
• Notifies predefined contacts of your status and
  location when in danger

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Theoretical Justifications

• Large population of college students exposed to
  social drinking and potentially dangerous
  situations
• Easy-to-Use simple interaction and reminders
• Warning and Explanation offering reasons for
  drinking responsibly and warning of consequences
• Surveillance watching and reporting about user
  through accurate measurements and proven results.
• Intrinsic Motivation not wanting to be sick,
  but wanting to have fun

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Results of User Testing

• Justin, Junior (experienced drinker)
• Experience is the only way to learn
• Warnings Pictures are better than text
• More effective for experienced drinkers (already
  know consequences)
• Self-Report weak have it vibrate/beep to remind
  user
• Text message to friends good idea
• Ryan, Freshman (intermediate drinker)
• Id hope someone else had it, and try to get
  mine higher
• Dont need a meter to tell me how drunk I am, I
  know how drunk I am
• Likes idea of stat tracking along with notes
• Lee, Freshman (inexperienced drinker)
• Warnings would be useful, would acknowledge them
• Facts are powerful, stat-tracking cool
• If tipsy, will I care anymore
• Accompany with a seminar on the dangers of
  drinking (freshman)

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Shortcomings of Design

• Could cause users to turn drinking
• into a competition
• Lacks the accuracy and ease of a standard
  breathalyzer
• Users may become too intoxicated to accurately
  update drinks
• Does not replace personal experience
• Does not fully counteract the peer pressure of
  social drinking

Stanford University, Fall 2006 CS377p Persuading
People Online and Via Mobile Phones www.captology.
org
Drink Doctor Andrew Gadson, Brett Hofer, Amos
Schallich Slide 9
10
Expansion - What else is possible?

• Automate drink input system
• Built-in breathalyzer
• One click to add a drink with or without opening
  phone
• Vibrate/Ring to remind user to add drinks at a
  regular interval
• Stat tracking to help experienced users make
  smart decisions
• Find a way to add positive reinforcement
• Support for 3rd party tracking

Stanford University, Fall 2006 CS377p Persuading
People Online and Via Mobile Phones www.captology.
org
Drink Doctor Andrew Gadson, Brett Hofer, Amos
Schallich Slide 10
11
Next Steps in Design Process

• Develop a fully-functioning prototype
• Perform live user tests where users possess
  prototypes during a night of partying
• Schedule more focus groups with both experienced
  and inexperienced college drinkers

Stanford University, Fall 2006 CS377p Persuading
People Online and Via Mobile Phones www.captology.
org
Drink Doctor Andrew Gadson, Brett Hofer, Amos
Schallich Slide 11
12
Summary

• Drink Doctor helps promote
• responsible drinking habits
• - Encourages both experienced and novice drinkers
  to keep track of how intoxicated they are.
• - Warns users of the consequences of drinking too
  much and provides constant feedback.
• - Contacts peers (friends, family, residential
  staff, etc) automatically when the user is in
  danger.

Stanford University, Fall 2006 CS377p Persuading
People Online and Via Mobile Phones www.captology.
org
Drink Doctor Andrew Gadson, Brett Hofer, Amos
Schallich Slide 12
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Evaluation of Captology Design Project
How well does the design idea fit into the realm
of captology? 0 1
2 3 4
5 6 7
How well does the design match the design
brief? 0 1
2 3 4
5 6 7
How viable/convincing is the proposed solution?
0 1 2
3 4 5
6 7
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Evaluation continued
How clever/insightful is the proposed solution?
0 1 2
3 4 5
6 7
How effectively did the presentation
communicate? 0 1
2 3 4
5 6 7
How well does the document communicate?
0 1 2
3 4 5
6 7
Bonus Points
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Additional Comments
Overall remarks or additional comments here
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