Cognitive                                Usability Using Human Factors to                        Michael Crabb            ...
Cognitive                                Usability Using Human Factors to                        Michael Crabb            ...
?                                ?                   ?               HUMAN                                smartphone      ...
Auditory Ability                                                  Internet Confidence                 Internet Usage      ...
Fluid Intelligence                       Long Term Memory                                                                 ...
Friday, 26 October 12
Test   Test   Test                        x      y      z                        Test   Test   Test                       ...
Letter Sets        Odd One Out                                                               Fluid Intelligence           ...
Meaningful Memory        Remembering Connections                                              Long Term Memory            ...
Meaningful Memory        Remembering Connections                                                                    Long T...
Gf                         Gf                         Gf          IC                            Ps    IC                  ...
turn theory into                                  practiceFriday, 26 October 12
government     banking   local attractions                 shopping    news         medicalFriday, 26 October 12
measurements                                               observed                        Human Factors           website...
measurements                                                            observed                        Human Factors     ...
testing                                                   hypothesis                               Cognitive factors have ...
defining an                                                 older adult                         Older Adults              ...
Older                            Adults                Younger                         s1      s2    s3                 Ad...
Multiple Regression                                     Cognitive factors have no impact on an individuals ability        ...
Multiple Regression                                    Cognitive factors have a negative impact on an individuals         ...
whats                                                  next?                        Human Factors                 humans o...
Friday, 26 October 12
Thank                                   You                                    any questions?        email: michaelcrabb@c...
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Cognitive Usability: Using Human Factors to Influence Future Online Usability Requirements

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Transcript of "Cognitive Usability: Using Human Factors to Influence Future Online Usability Requirements"

  1. 1. Cognitive Usability Using Human Factors to Michael Crabb Vicki L. Hanson Influence Future Online Andy Cobley Usability RequirementsFriday, 26 October 12
  2. 2. Cognitive Usability Using Human Factors to Michael Crabb Vicki L. Hanson Influence Future Online Andy Cobley Usability RequirementsFriday, 26 October 12
  3. 3. ? ? ? HUMAN smartphone Printer tablet ? ? ? ? ? MAC Calculator Computer Browse Move Mouse Keyboard PC Monitor Touch Interaction write Type Swipe AdjustFriday, 26 October 12
  4. 4. Auditory Ability Internet Confidence Internet Usage Crystallised Intelligence HUMAN Cognitive Long Term Memory Psychology Processing Speed Fluid Intelligence Short Term Visual Processing Memory Reading Ability Writing AbilityFriday, 26 October 12
  5. 5. Fluid Intelligence Long Term Memory Internet Usage Processing Speed Internet Confidence Short Term MemoryFriday, 26 October 12
  6. 6. Friday, 26 October 12
  7. 7. Test Test Test x y z Test Test Test a b c Test Test Test j k l Test Test Test 1 2 3Friday, 26 October 12
  8. 8. Letter Sets Odd One Out Fluid Intelligence I BCDE FGHI JKLM PRST VWXY II CERT KMTV FHXZ BODQ HJPR III KGDB DFIM KIFB HJMQ LHECFriday, 26 October 12
  9. 9. Meaningful Memory Remembering Connections Long Term Memory hammer excellent rock rough roof flatFriday, 26 October 12
  10. 10. Meaningful Memory Remembering Connections Long Term Memory rock dirt smooth flat jagged large roof level rough sloping leaky sturdy hammer big rough good small heavyFriday, 26 October 12
  11. 11. Gf Gf Gf IC Ps IC Ps IC Ps IU Gsm IU Gsm IU Gsm Glr Glr Glr participant x participant Y participant zFriday, 26 October 12
  12. 12. turn theory into practiceFriday, 26 October 12
  13. 13. government banking local attractions shopping news medicalFriday, 26 October 12
  14. 14. measurements observed Human Factors website Factors ✦Fluid Intelligence ✦Scrolling and Paging ✦Processing Speed ✦Links ✦Short Term Memory ✦Forms ✦Long Term Memory ✦Writing Content ✦Internet Confidence ✦Page Layout ✦Internet Usage ✦Searching ✦Demographics ✦Headings ✦Images ✦Navigation ✦Text AppearanceFriday, 26 October 12
  15. 15. measurements observed Human Factors humans observing websites ✦Fluid Intelligence ✦Disorientation Questions ✦Processing Speed ✦Disorientation (Reversed) Questions ✦Short Term Memory ✦Ease of Use Questions ✦Long Term Memory ✦Internet Confidence ✦Internet Usage ✦Demographics website Factors websites observing humans ✦Scrolling and Paging ✦Pages Visited ✦Links ✦Path Through Website ✦Forms ✦Time on Page ✦WritingContent ✦Links Selected ✦Page Layout ✦IR Question Refresh ✦Searching ✦Headings ✦Images ✦Navigation ✦Text AppearanceFriday, 26 October 12
  16. 16. testing hypothesis Cognitive factors have no impact on an individuals ability to H0 : perform Information Retrieval tasks Older and Younger adults use the same cognitive factors H0 : when performing Information Retrieval tasks Cognitive factors have a negative impact on an individuals H0 : ability to perform Information Retrieval tasksFriday, 26 October 12
  17. 17. defining an older adult Older Adults Max: 89 Mean: 70 Min: 62 Younger Adults Max: 28 Mean: 22 Min: 18Friday, 26 October 12
  18. 18. Older Adults Younger s1 s2 s3 Adults independent Kurtosis Multiple sampled t-test Testing RegressionFriday, 26 October 12
  19. 19. Multiple Regression Cognitive factors have no impact on an individuals ability H0 : Younger and Older Adults to perform Information Retrieval tasks 45.1% Cognitive Factors 32.5% Tech Usage 31.0% Cognitive Factors 10.4% 9.7% Age Tech Usage 0.1% Age s 1 s2 s3 s3 s2 s 1Friday, 26 October 12
  20. 20. Multiple Regression Cognitive factors have a negative impact on an individuals Older and Younger adults use the same cognitive factors H0 : Younger and Older Adults abilityperforming Information Retrieval tasks when to perform Information Retrieval tasks older Adults Younger Adults Internet Confidence Short Term Memory Disorientation Disorientation Fluid Intelligence Internet Confidence Fluid Intelligence Short Term Processing Speed Memory Long Term Memory Internet Usage Processing SpeedFriday, 26 October 12
  21. 21. whats next? Human Factors humans observing websites ✦Fluid Intelligence ✦Disorientation Questions ✦Processing Speed ✦Disorientation (Reversed) Questions ✦Short Term Memory ✦Ease of Use Questions ✦Long Term Memory ✦Internet Confidence ✦Internet Usage ✦Demographics website Factors websites observing humans ✦Scrolling and Paging ✦Pages Visited ✦Links ✦Path Through Website ✦Forms ✦Time on Page ✦WritingContent ✦Links Selected ✦Page Layout ✦IR Question Refresh ✦Searching ✦Headings ✦Images ✦Navigation ✦Text AppearanceFriday, 26 October 12
  22. 22. Friday, 26 October 12
  23. 23. Thank You any questions? email: michaelcrabb@computing.dundee.ac.uk twitter: @mike_crabbFriday, 26 October 12

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