UNIVERSIDAD CATÓLICA SAN PABLO VICTOR ARROYO Antti Oulasvirta, Janne P. Hukkinen Helsinki University of Technology TKK Barry Schwartz Psychology Department Swarthmore College

1) Introduction 2) Choice Among Results 3) Method 4) Results 5) Conclusion

 Google  The paradox of choice 1)Introduction 2)Choice Among Results 3)Method 4)Results 5)Conclusion

 Phase 1: Attraction  Phase 2: Choice n(n-1)/2  Phase 3: Evaluation 1)Introduction 2)Choice Among Results 3)Method 4)Results 5)Conclusion

 Participants  Experimental design  Materials  Procedure 1)Introduction 2)Choice Among Results 3)Method 4)Results 5)Conclusion

 Satisfaction  Confidence  Carefulness  Suitability 1)Introduction 2)Choice Among Results 3)Method 4)Results 5)Conclusion

 We found that a six-item search result list was associated with higher satisfaction, confidence, and perceived carefulness than a 24-item list.  The paradox of choice has important implications for the design of search engine results. 1)Introduction 2)Choice Among Results 3)Method 4)Results 5)Conclusion