An evaluation of how small user interface changes can improve scientists' analytic strategies

  • Authors:
  • Radu Jianu;David Laidlaw

  • Affiliations:
  • Brown University, Providence, RI, USA;Brown University, Providence, RI, USA

  • Venue:
  • Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
  • Year:
  • 2012

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Abstract

Subtle changes in analysis system interfaces can be used purposely to alter users' analytic behaviors. In a controlled study subjects completed three analyses at one-week intervals using an analysis support system. Control subjects used one interface in all sessions. Test subjects used modified versions in the last two sessions: a first set of changes aimed at increasing subjects' use of the system and their consideration of alternative hypotheses; a second set of changes aimed at increasing the amount of evidence collected. Results show that in the second session test subjects used the interface 39% more and switched between hypotheses 19% more than in the first session. They then collected 26% more evidence in the third than in the second session. These increases differ significantly (p