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How many participants are needed when usability testing physical products?: An analysis of data collected from usability tests conducted on physical products
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Testing a product on users before releasing it on the market can be very rewarding but also costly for companies. Therefore testing products on just the right number of users, that will be enough to include the benefits of the tests while keeping down the costs, would be most beneficial. A common advice means that five participants are enough to include in such tests. This advice is based on research mainly from testing computer-based interfaces on users. Though, how well this advice can be applied when testing physical products on users is less investigated.

This thesis has investigated how many participants that are needed when testing physical products on users. A literature study and an analysis of data collected from physical products tested on users were conducted. The results show that using five participants when testing physical products on users cannot be counted on to be enough. The results also show that the number of participants to use, when testing physical products on users, vary.

Place, publisher, year, edition, pages
2018. , p. 54
Keywords [en]
usability testing, usability, participants, users, physical products
National Category
Human Computer Interaction
Identifiers
URN: urn:nbn:se:umu:diva-147504OAI: oai:DiVA.org:umu-147504DiVA, id: diva2:1203733
External cooperation
RISE Research Institutes of Sweden
Educational program
Master of Science Programme in Interaction Technology and Design - Engineering
Examiners
Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2018-05-04Bibliographically approved

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Department of Applied Physics and Electronics
Human Computer Interaction

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf