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Differences
in
Discovery:


            How
Search
Tools
Affect
Undergraduate
Research

                                           Andrew
D.
Asher
                                     Lynda
M.
Duke
                  Susanne
Wilson

                                          Bucknell
University
                          Illinois
Wesleyan
University
    Illinois
Wesleyan
University





                                                                                                                                                                                                                    Mean Scores
                                                                                                                                                                                                                                              Library
                                                                                                                                                                                             EBSCO                             Google
                                                                                                                                                                                                           Summon                             Catalog/        No Tool
                                                                                                                                                                                            Discovery                          Scholar
                                                                                                                                                                                                                                             Databases
                                                                                                                                                                               All
                                                                                                                                                                                              2.54             1.92              1.80             2.06            2.05
                                                                                                                                                                            Questions
                                                                                                                                                                           Question 1         2.46             2.29              1.19             2.13            1.96

                                                                                                                                                                           Question 2         2.20             1.15              1.49             1.94            1.73

                                                                                                                                                                           Question 3         2.83             2.01              2.33             2.05            2.15

                                                                                                                                                                            Question          2.70             2.19              2.09             2.02            2.33




                                                                                                                                                                                     Quantitative Benchmarks

                                                                                                                                                         Google Scholar           Library Catalog/Databases                   No tool specified          Summon          EDS
                                                                                                                                                 Bucknell    IWU       Overall   Bucknell     IWU         Overall     Bucknell     IWU       Overall     Bucknell        IWU
                                                                                                                                                  Mean       Mean      Mean       Mean        Mean        Mean         Mean        Mean      Mean         Mean           Mean


                                                                                                                              Total Page Views    33.4        29.7        31.9    37.6         38.1        37.9        42.8         51.3      46.4         43.5          20.6

                                                                                                                              Total number of
                                                                                                                                                   9.3        8.23        8.9      11.1        12.5        12.0        13.0         15.8      14.2         9.4           7.4
                                                                                                                                 Searches
                                                                                                                                Total Time to
                                                                                                                              complete search
                                                                                                                                                   987        942         968      885         1020        963          971        1232       1081         1209          747
                                                                                                                                  tasks (in
                                                                                                                                  seconds)




                                                                               Type of Search
                                                                               Simple   Advanced   Boolean                                                                                                 Resource Types
                                                            Google Scholar     94.5%       4.2%     1.4%                                                                                              Google                                Library Catalog/
                                                                                                                                                                                                              Summon EDS                                             No Tool
                                                                 Summon        79.3%      12.6%     8.1%                                                                                              Scholar                                  Databases

                                                                  EDS          75.4%      23.1%     1.5%                                                        Academic Journal Articles               55.0%         65.0%       73.8%            49.2%                 50.3%
                                                                                                                                                                             Books                      26.5%         13.4%       12.5%            41.3%                 15.4%
                                                           Library Catalog/
                                                                               77.2%      19.1%     3.7%                                                         Newspapers/Magazines/
                                                              Databases                                                                                                                                 2.0%          20.6%       6.3%             3.2%                  2.7%
                                                                                                                                                                    Trade Journals
                                                                 No Tool       81.1%      16.3%     2.5%                                                               For-Pay Articles                 13.3%         0.0%        0.0%             0.0%                  1.3%
                                                                                                                                                                     Websites (including
                                                           Total, All Groups   81.5%      15.1%     3.4%                                                                                                0.7%          0.0%        0.0%             0.0%                  21.5%
                                                                                                                                                                         Wikipedia)
                                                                                                                                                                     Government & Legal
                                                                                                                                                                                                        2.7%          0.0%        5.0%             2.1%                  2.0%
                                                                                                                                                                         Document
                                                                                                                                                                      Other Documents                   0.0%          1.0%        2.5%             4.2%                  6.7%




                   First-page Sources
                              Percent of sources found
                                    on first page
     Google Scholar                    83%
        Summon                         96%
          EDS                          94%
Library Catalog/Databases
    No Tool Specified
                                       94%
                                       94%                                                                                                          Search
Epistemology

                                                                                                                                                  De
facto
outsourcing
of
evalua7on

                                                                                                                                                 process
to
the
search
algorithm
itself.


                                                                                                                        Brand
Bias
                             Default
Bias
                                                    Trust
Bias


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Differences in Discovery: How Seach Tools Affect Undergraduate Research

  • 1. Differences
in
Discovery:

 How
Search
Tools
Affect
Undergraduate
Research
 Andrew
D.
Asher
 Lynda
M.
Duke
 Susanne
Wilson
 Bucknell
University
 Illinois
Wesleyan
University
 Illinois
Wesleyan
University
 Mean Scores Library EBSCO Google Summon Catalog/ No Tool Discovery Scholar Databases All 2.54 1.92 1.80 2.06 2.05 Questions Question 1 2.46 2.29 1.19 2.13 1.96 Question 2 2.20 1.15 1.49 1.94 1.73 Question 3 2.83 2.01 2.33 2.05 2.15 Question 2.70 2.19 2.09 2.02 2.33 Quantitative Benchmarks Google Scholar Library Catalog/Databases No tool specified Summon EDS Bucknell IWU Overall Bucknell IWU Overall Bucknell IWU Overall Bucknell IWU Mean Mean Mean Mean Mean Mean Mean Mean Mean Mean Mean Total Page Views 33.4 29.7 31.9 37.6 38.1 37.9 42.8 51.3 46.4 43.5 20.6 Total number of 9.3 8.23 8.9 11.1 12.5 12.0 13.0 15.8 14.2 9.4 7.4 Searches Total Time to complete search 987 942 968 885 1020 963 971 1232 1081 1209 747 tasks (in seconds) Type of Search Simple Advanced Boolean Resource Types Google Scholar 94.5% 4.2% 1.4% Google Library Catalog/ Summon EDS No Tool Summon 79.3% 12.6% 8.1% Scholar Databases EDS 75.4% 23.1% 1.5% Academic Journal Articles 55.0% 65.0% 73.8% 49.2% 50.3% Books 26.5% 13.4% 12.5% 41.3% 15.4% Library Catalog/ 77.2% 19.1% 3.7% Newspapers/Magazines/ Databases 2.0% 20.6% 6.3% 3.2% 2.7% Trade Journals No Tool 81.1% 16.3% 2.5% For-Pay Articles 13.3% 0.0% 0.0% 0.0% 1.3% Websites (including Total, All Groups 81.5% 15.1% 3.4% 0.7% 0.0% 0.0% 0.0% 21.5% Wikipedia) Government & Legal 2.7% 0.0% 5.0% 2.1% 2.0% Document Other Documents 0.0% 1.0% 2.5% 4.2% 6.7% First-page Sources Percent of sources found on first page Google Scholar 83% Summon 96% EDS 94% Library Catalog/Databases No Tool Specified 94% 94% Search
Epistemology
 De
facto
outsourcing
of
evalua7on
 process
to
the
search
algorithm
itself.
 Brand
Bias
 Default
Bias
 Trust
Bias