An examination of two delivery modes for interactive search system experiments: remote and laboratory

  • Authors:
  • Diane Kelly;Karl Gyllstrom

  • Affiliations:
  • University of North Carolina at Chapel Hill, Chapel Hill, N. Carolina, USA;Katholieke Universiteit Leuven, Leuven, Belgium

  • Venue:
  • Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
  • Year:
  • 2011

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Abstract

We compare two delivery modes for interactive search system (ISS) experiments: remote and laboratory. Our study was completed by two groups of subjects from the same population. The first group completed the study remotely and the second group completed the study in the laboratory. We compare differences in participants, participation behaviors, search behaviors and evaluation behaviors. Overall, for most measures no significant differences were found, but there were some notable differences. Greater variance was observed in time taken and number of documents opened and saved by remote subjects. Lab subjects provided more favorable responses to exit questionnaire items and reported significantly higher satisfaction. Lab subjects also provided significantly longer responses to open questions, while remote subjects provided more null responses. These results suggest that many behaviors do not change significantly according to study mode and that results from remote ISS experiments are similar to those from laboratory experiments.