1

Michael CrabbUniversity of Dundee, Scotland, UK.

Human Cognitive Measurement as a Metric within Usability Studies

Friday, 17 May 13

2

Michael CrabbUniversity of Dundee, Scotland, UK.

Human Cognitive Measurement as a Metric within Usability Studies

Friday, 17 May 13

User 1 User 2

Spot the Difference...

Age 85 Age 85

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Related Work

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Understanding the role of age and fluid intelligence

in information search(Trewin, S. et al. 2012)

Adaptive information search: age-dependent interactions between cognitive profiles and strategies(Chin, J.2009)

Factors predicting the use of technology: Findings from the center for research and education on aging and technology enhancement (CREATE)(Czaja, S.et al. 2006)

Computer use by older adults: A multi-

disciplinary review(Wagner N. et al 2010)

Cognition, Age, and Web Browsing

(Hanson, V. L.2009)

Related Work

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AgeInternet Usage

Internet ExperienceFluid IntelligenceProcessing Speed

Short Term MemoryLong Term Memory

independ

ent varia

bles

participants

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participants

Cognitive Testing Battery

Information Retrieval Task

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User Characteristics

Disorientation

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User Characteristics

Disorientation

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Older Adults Younger Adults

R2 = .427

R2 = .272

R2 = .017

R2 = .246

R2 = .098

R2 = .0.15

Age

Previous Internet Factors

Cognitive Factors

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Diso

rien

tati

on

Diso

rien

tati

on

Older Adults Younger Adults

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Processing Speed

Diso

rien

tati

on

Diso

rien

tati

on

Older Adults Younger Adults

Internet Confidence

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Processing Speed

Diso

rien

tati

on

Diso

rien

tati

on

Older Adults Younger Adults

Short Term Memory

Fluid Intelligence

Internet Confidence

Internet Confidence

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keyfindings

‣Cognitive abilities are better predictors than age

‣ Increase in experience doesn’t always mean increase in ability

‣Analyzing cognitive profiles are only half the story

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12

Whats n2t?

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AcknowledgmentsProf. Vicki L. Hanson,Marianne Dee,Lesley McIntyre,Andy Cobley,Kyle Montague.

This research is supported by RCUK grant EP/G066019/1 “RCUK Hub: Inclusion in the Digital

Economy”.

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Summary... Michael CrabbUniversity of Dundee, UK.

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To turn

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Group B

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USER A

USER B

USER C

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Summary... Michael CrabbUniversity of Dundee, UK.

I useTHIS

Friday, 17 May 13