Some Findings

• Quantitative - speed of task completion

  • Text - greatest rate of completion, fastest response
  • All tended to converge with experience, with 3D improving the most and text slightly degrading

• Qualitative

  • Participants liked and understood clusters and relationships among clusters
  • Participants used concepts on which clusters were based to narrow search
  • Concept colors were used effectively under all 3 conditions

• Built model which predicts relative performance among various tasks types

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