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Evaluating the Cognitive Impact of
    Search User Interface Design Decisions
                               Max L. Wilson
                            Swansea University, UK


                              euroHCIR2011
                         Newcastle, UK - 4th July 2011

 Max L. Wilson                                           m.l.wilson@swansea.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Come and Sii what I’ve built




                         http://mspace.fm/sii
 Max L. Wilson                                  m.l.wilson@swansea.ac.uk
                                                        csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Cognitive Load Theory


                                        whats the problem here?




                  Paas, F., Tuovinen, J. E., Tabbers, H., & Van Gerven, P. W. M. (2003). Cognitive load measurement
                            as a means to advance cognitive load theory. Educational Psychologist, 38, 63–71

 Max L. Wilson                                                                                   m.l.wilson@swansea.ac.uk
                                                                                                         csmax@swan.ac.uk
Wednesday, 6 July 2011
Max L. Wilson           m.l.wilson@swansea.ac.uk
                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
Intrinsic Load
                            (the task)



 Max L. Wilson                            m.l.wilson@swansea.ac.uk
                                                  csmax@swan.ac.uk
Wednesday, 6 July 2011
Extraneous Load
                          (the user interface)
                          Intrinsic Load
                             (the task)



 Max L. Wilson                                   m.l.wilson@swansea.ac.uk
                                                         csmax@swan.ac.uk
Wednesday, 6 July 2011
Germane Load
                          (to learn and store)
                         Extraneous Load
                          (the user interface)
                          Intrinsic Load
                             (the task)



 Max L. Wilson                                   m.l.wilson@swansea.ac.uk
                                                         csmax@swan.ac.uk
Wednesday, 6 July 2011
Germane Load
                          (to learn and store)
                         Extraneous Load
                          (the user interface)
                          Intrinsic Load
                             (the task)



 Max L. Wilson                                   m.l.wilson@swansea.ac.uk
                                                         csmax@swan.ac.uk
Wednesday, 6 July 2011
A simple UI


                         A simple task




 Max L. Wilson                           m.l.wilson@swansea.ac.uk
                                                 csmax@swan.ac.uk
Wednesday, 6 July 2011
A simple UI



                         A complex learning task




 Max L. Wilson                                     m.l.wilson@swansea.ac.uk
                                                           csmax@swan.ac.uk
Wednesday, 6 July 2011
struggling



                             A complex UI



                         A complex learning task




 Max L. Wilson                                     m.l.wilson@swansea.ac.uk
                                                           csmax@swan.ac.uk
Wednesday, 6 July 2011
Measuring Cognitive Load




 Max L. Wilson                                m.l.wilson@swansea.ac.uk
                                                      csmax@swan.ac.uk
Wednesday, 6 July 2011
*Proposed* Recommendations
    • Offload     visual material to audio if appropriate
    • Segment into edible chunks
    • Pre-train people
    • Weed out unnecessary material
    • Provide clear visual clues to core material
    • Make sure visual content relates closely to text
    • Remove redundancy
    • Pitch at correct user level

                         Mayer, R. E., & Moreno, R. (2003). Nine ways to reduce cognitive load in multimedia
                         learning. Educational Psychologist, 38, 43–52.

 Max L. Wilson                                                                                     m.l.wilson@swansea.ac.uk
                                                                                                           csmax@swan.ac.uk
Wednesday, 6 July 2011
Our Plans




                                                      Objective Measurements
          Explicit Design Changes




 Max L. Wilson                                  m.l.wilson@swansea.ac.uk
                                                        csmax@swan.ac.uk
Wednesday, 6 July 2011
Brain Scanners in HCI » BCI




 Max L. Wilson                          m.l.wilson@swansea.ac.uk
                                                csmax@swan.ac.uk
Wednesday, 6 July 2011
Brain Scanners for HCI Measurements




 Max L. Wilson                   m.l.wilson@swansea.ac.uk
                                         csmax@swan.ac.uk
Wednesday, 6 July 2011
Phase 1




 Max L. Wilson                     m.l.wilson@swansea.ac.uk
                                           csmax@swan.ac.uk
Wednesday, 6 July 2011
Phase 2




 Max L. Wilson                     m.l.wilson@swansea.ac.uk
                                           csmax@swan.ac.uk
Wednesday, 6 July 2011
Phase 3




 Max L. Wilson                     m.l.wilson@swansea.ac.uk
                                           csmax@swan.ac.uk
Wednesday, 6 July 2011
We aim to produce clear
                         design recommendations
                                 based upon
                                 objective
                                 measures of
                             cognitive impact


 Max L. Wilson                                 m.l.wilson@swansea.ac.uk
                                                       csmax@swan.ac.uk
Wednesday, 6 July 2011

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euroHCIR Presentation

  • 1. Evaluating the Cognitive Impact of Search User Interface Design Decisions Max L. Wilson Swansea University, UK euroHCIR2011 Newcastle, UK - 4th July 2011 Max L. Wilson m.l.wilson@swansea.ac.uk Wednesday, 6 July 2011
  • 2. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 3. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 4. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 5. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 6. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 7. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 8. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 9. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 10. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 11. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 12. Come and Sii what I’ve built http://mspace.fm/sii Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 13. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 14. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 15. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 16. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 17. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 18. Cognitive Load Theory whats the problem here? Paas, F., Tuovinen, J. E., Tabbers, H., & Van Gerven, P. W. M. (2003). Cognitive load measurement as a means to advance cognitive load theory. Educational Psychologist, 38, 63–71 Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 19. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 20. Intrinsic Load (the task) Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 21. Extraneous Load (the user interface) Intrinsic Load (the task) Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 22. Germane Load (to learn and store) Extraneous Load (the user interface) Intrinsic Load (the task) Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 23. Germane Load (to learn and store) Extraneous Load (the user interface) Intrinsic Load (the task) Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 24. A simple UI A simple task Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 25. A simple UI A complex learning task Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 26. struggling A complex UI A complex learning task Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 27. Measuring Cognitive Load Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 28. *Proposed* Recommendations • Offload visual material to audio if appropriate • Segment into edible chunks • Pre-train people • Weed out unnecessary material • Provide clear visual clues to core material • Make sure visual content relates closely to text • Remove redundancy • Pitch at correct user level Mayer, R. E., & Moreno, R. (2003). Nine ways to reduce cognitive load in multimedia learning. Educational Psychologist, 38, 43–52. Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 29. Our Plans Objective Measurements Explicit Design Changes Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 30. Brain Scanners in HCI » BCI Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 31. Brain Scanners for HCI Measurements Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 32. Phase 1 Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 33. Phase 2 Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 34. Phase 3 Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011
  • 35. We aim to produce clear design recommendations based upon objective measures of cognitive impact Max L. Wilson m.l.wilson@swansea.ac.uk csmax@swan.ac.uk Wednesday, 6 July 2011