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Studying Judgments and Decisions Made on the Web Gary McClelland & Barbara Fasolo University of Colorado @ Boulder S

Studying Judgments and Decisions Made on the Web Gary McClelland & Barbara Fasolo University of Colorado @ Boulder Society for Judgment and Decision Making New Orleans, November 2000. MouseLab IDB (ca. 1990). IDB—Options x Attributes. IDB—Attributes x Options. IDB—46 x 5. IDB—Continued.

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Studying Judgments and Decisions Made on the Web Gary McClelland & Barbara Fasolo University of Colorado @ Boulder S

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  1. Studying Judgments and Decisions Made on the Web Gary McClelland & Barbara Fasolo University of Colorado @ Boulder Society for Judgment and Decision Making New Orleans, November 2000 JDM, New Orleans

  2. MouseLab IDB (ca. 1990) JDM, New Orleans

  3. IDB—Options x Attributes JDM, New Orleans

  4. IDB—Attributes x Options JDM, New Orleans

  5. IDB—46 x 5 JDM, New Orleans

  6. IDB—Continued JDM, New Orleans

  7. IDB—Still More JDM, New Orleans

  8. IDB—More Yet! JDM, New Orleans

  9. IDB—The End JDM, New Orleans

  10. Winnowing Options • Specifying Attribute Cutoffs (EBA) • Sorting along Attributes (LEX) • Weighting Attributes (WADD) • Measuring Tradeoffs (MAUT) • Computing Option Score JDM, New Orleans

  11. Elimination-by-Aspects JDM, New Orleans

  12. Elimination-by-Aspects JDM, New Orleans

  13. EBA—Are You Sure? JDM, New Orleans

  14. EBA & LEX JDM, New Orleans

  15. WADD—Getting the Wts JDM, New Orleans

  16. WADD—Weights & Values JDM, New Orleans

  17. Weight Profiles JDM, New Orleans

  18. WADD—Option Score JDM, New Orleans

  19. MAUT—Tradeoffs www.activebuyersguide.com JDM, New Orleans

  20. MAUT—Global JDM, New Orleans

  21. Collaborative Filtering • www.amazon.com • movielens.umn.edu • www.imdb.com JDM, New Orleans

  22. Data Collection • Server Log Files • Messages Sent to Server by • HTML Forms • Javascript • Java JDM, New Orleans

  23. JDM, New Orleans

  24. 219.den1.phoenixdsl.net - - • [03/Oct/2000:23:22:27 -0600] "GET • /~mcclella/timer.html HTTP/1.1" 200 1358 • 219.den1.phoenixdsl.net – • [03/Oct/2000:23:22:41 -0600] "GET /~mcclella/start.html HTTP/1.1" 200 975 • 219.den1.phoenixdsl.net - - • [03/Oct/2000:23:22:59 -0600] "GET • /~mcclella/another.html HTTP/1.1" 200 771 • 219.den1.phoenixdsl.net - - • [03/Oct/2000:23:23:05 -0600] "GET • /~mcclella/start.html HTTP/1.1" 200 975 • 219.den1.phoenixdsl.net - - • [03/Oct/2000:23:23:13 -0600] "GET • /~mcclella/end.html HTTP/1.1" 200 484 JDM, New Orleans

  25. Online Auctions JDM, New Orleans

  26. Bidding Logs JDM, New Orleans

  27. Bid Bursts on eBay JDM, New Orleans

  28. Friendly and Unfriendly r=.5 r=-.3 JDM, New Orleans

  29. Link to Experiment JDM, New Orleans

  30. PI and Attribute Correlation JDM, New Orleans

  31. Conclusions • Important and real JDM being done on the Web • JDM on the Web leaves lots of traces • JDM Researchers ought to be studying JDM on the Web JDM, New Orleans

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