stanford university, fall 2006 persuasive technology & ribbit murad, brian, dahwun, yeong...

Stanford University, Fall 2006Persuasive Technologywww.captology.org & www.captology.tv

RibbitMurad, Brian, Dahwun, Yeong

Slide #1

Ribbit A conceptual captology design by

Brian Ong, Dahwun Kim, Murad Akhter, Yeong Haur Kok

Design ChallengeTo encourage language learners to practice speaking

the language using mobile phones

Time limit: 15 hours



Slide #2

RibbitPersuasive Purpose

To motivate language learners to speak the language more frequently using daily mobile prompts and virtual rewards.

Industrial Design

Have you Ribbit Today?



Slide #3

User Description

• Language learners who want to improve their oral language skills

• Language learners who need more opportunity to practice speaking the language

• Users have access to mobile phones and the Internet and are well-acquainted with these technologies



Slide #4

Murad’s Ribbit Odyssey

After that, Murad records a description of his lunch in Chinese. An animated tadpole provides him with instant reinforcement, and a status bar updates him of his progress.

Later during the day, Murad checks “the pond” and saw his classmates’ photos. He decides to listen to their recordings as well.

At the end of the Chinese language class, the teacher asked everyone to practice speaking the language more. She introduced a mobile service “Ribbit” which will help them do that. Murad decides to sign up.

Next morning, Murad gets an SMS from Ribbit on the lesson goal of the day. It is to “describe what you have for lunch today.”

Later, during lunch, Murad got a reminder from Ribbit. Using his cell phone, he took a picture of his delicious chicken noodles soup.

The week has passed and it’s the language class again. Because of their increased practice, Murad and his classmates are able to converse in Chinese more fluently now.



Slide #5

Prototype of Ribbit

• Pictures sent to gallery with speech recordings

• Other users can see pictures and can download to hear speech

• They can give feedback• All user recordings will be accessible

for review at Ribbit’s website

Have you Ribbit Today?

• “Growth” of tadpole reflects learners’ performance



Slide #6

Features/Functionality

• Daily learning goals and prompts• Task reminders (user can set preferences)• Takes pictures• Records speech• Reviews recorded message• Sends audio files to website• Gives virtual encouragement (nurturing tadpole)• Can choose to send picture & speech to gallery• Can see other users’ pictures and download to hear

their speeches; can give feedback to these users



Slide #7

Theoretical Justifications

Persuasive Strategies• Mobile Simplicity / Reduction

– Simple task to perform

• Consistency– Introduces routine

• Self-Monitoring– Performance tracking via status bar & growth of tadpole

• Positive Reinforcements/Virtual Rewards– More recordings -> More “growth” for tadpole



Slide #8

Prototype of Ribbit



Slide #9

User Testing Pictures



Slide #10

Results of User Testing

Duration of language learning• 0 - 6 months (1) 1 year - 2 years (1) > 2 years (10)

Fluency in the language• Advanced beginner (7) Intermediate (2) Advanced (3)

What element of language learning are you most concerned about?• Spoken (11) Written (1)

Current daily language learning• < 30 minutes (10) 30 minutes - 1 hour (2)

Time willing to spend with a mobile language application daily?• < 10 minutes (9) 10 - 20 minutes (3)

Ribbit’s user-friendliness• Extremely easy (1) Quite easy (11)



Slide #11

Results of User Testing

Ribbit’s usefulness• Very useful (1) Quite useful (10) Not useful at all (1)

Ribbit’s features• Too few features (1) Just enough features (10) Too many features (1)

Ribbit’s social comparison feature• I prefer working alone (5) I prefer comparing my progress to others (7)

Favorite Ribbit feature• New Ribbit (3) Pond (4) My Ribbits (1) Themes (4)

Likeliness of responding to a Ribbit from someone else• Unlikely (6) Likely (5) Very likely (1)

Likeliness of using Ribbit• Unlikely (4) Likely (6) Very likely (2)



Slide #12

Shortcomings of Design

• Monologue Practice– Limits on learning potential

• No real-time support– No help for user (e.g. vocabulary support)

• Delayed feedback on performance– No immediate corrections on wrong pronunciations

• No encouragement to advance to higher level– User not pushed to talk at more advanced level



Slide #13

Expansion - What else is possible?

• Audio dictionary on mobile– Supports user in multiple context and situations

• Searchable recordings using mobile– User can search for past recordings

• Pairing up with Native/Other Speakers– Practice directly with expert speakers or other speakers

learning the same language



Slide #14

Next Steps in Design Process

• Build a rapid prototype of Ribbit• User test in a language class with our target

audience• Iterate• Usability and learner studies• Develop a website



Slide #15

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



Slide #16

Evaluation continued…

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

How clever/insightful is the proposed solution?

0 1 2 3 4 5 6 7



Slide #17

Additional Comments:

Overall remarks or additional comments here

stanford university, fall 2006 persuasive technology & ribbit murad, brian, dahwun, yeong...

Documents

mobile language application

chinese language class

element of language

murad akhter

feedbackall user recordings

daily mobile prompts

mobile service

mobile phones time limit