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Single VS. Multiple

Textbox EventCreation Experiment

Filip Mares TIM Carleton University

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Outline

Background

Experiment Method

Analysis

Future Experiments Conclusion

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Twegather

Started in Summer 2009

Joint project for TeamCampmembers

Team of 5 active members

Close to a Minimum ViableProduct (MVP)

Create anevent with3 mouseclicks

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Difference from competition

Simple event creation process

Registration not required for creating

RSVP via Social Networks

TwitterFacebook (soon)

Free

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Experiment

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Experiment

Natural Process

Increase event creation

Reduce creation process difficulty

Re-design front page

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Hypotheses

H1: Participants will create events quicker onaverage using the proposed page designopposed to the current page.

H2: Participants will make fewer mistakes whencreating events using the current designopposed to the proposed design.

H3:Participants will prefer the proposedTwegather event creation page to the existingevent creation page design.

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Method

A/B testDesign A Current

Design B Proposed

8 participants Recorded screen with software

Pre-thought event

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Metrics

Completion Time

Errors Encountered

QuestionnaireLIKERT

Designs Preference

Designs Difficulty

Comments

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Participants will create events quicker onaverage using the proposed page designopposed to the current page.

Hypothesis 1

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Completion Time

Mean: 41.5

seconds SD: 13.6 seconds

Mean: 22.75

seconds SD: 7.28 seconds

Design A Design B

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Completion Time

P Value: 0.0091

Group comparison:

Design A pval: 0.779Design B pval: 0.7648

Hypothesis VerifiedDesign A is faster to

complete

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Participants will make fewer mistakeswhen creating events using the currentdesign opposed to the proposed design.

Hypothesis 2

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Errors Encountered

Mean: 1.38 errors

SD: 0.52 errors

Mean: 0.625

errors SD: 0.625 errors

Design A Design B

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Errors Encountered

P Value: 0.0199

Group Comparison:

Group A pval:0.6376

Group B pval: 0.39

Hypothesisrejected

Design B had lesserrors

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Participants will prefer the proposed Twegather event

creation page to the existing event creation pagedesign.

Hypothesis 3

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Design Preference

Mean: 3.5/5

rating SD: 0.93

Mean: 3.63/5

Rating SD: 1.19

Design A Design B

Note: (really disliked) 1 5 (really liked)

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Design Preference

P value: 0.8565

Group Comparison:Group A pval: 1

Group B pval: 0.788 Hypothesis

rejectedThere were no

obvious preferreddesign

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Threats to Validity

Typing skill level

Internet connection

Test Environment

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Participant Feedback

Single textbox hard at 1st, easierafterwards

Multiple textbox requires less thinking

Multiple textbox followed order of otherservices

Good parsing of regular phrases in single

textbox

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Future Experiments

Event syntax auto-completion vs.preview

Event creation workflow

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Conclusion

Event creation completed faster withsingle textbox

Less errors encountered in single

textbox design Participants did not have a strong

favorite design

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Questions?

Thank You