Presentation on theme: "Discovery or Displacement? A Major Longitudinal Study of the Effect of Web-Scale Discovery Services on Online (Journal) Usage SCELC Colloquium March 5,"— Presentation transcript:
Discovery or Displacement? A Major Longitudinal Study of the Effect of Web-Scale Discovery Services on Online (Journal) Usage SCELC Colloquium March 5, 2014 Michael Levine-Clark, University of Denver John McDonald, University of Southern California Jason Price, SCELC Consortium
“…a steep increase in full text downloads and link resolver click ‐ throughs suggests Summon had a dramatic impact on user behavior and the use of library collections during this time period.” The Impact of Web-scale Discovery on the Use of a Library Collection Doug Way (2010)
Does implementation of a discovery service impact usage of publisher- hosted journal content?
What did we measure? Whether there is an effect NOT why that effect exists (that’s a future study!)
“Society will need to shed some of its obsession for causality in exchange for simple correlations: not knowing why, but only what” ( Cukier & Mayer-Schonberger Big data: A revolution that will transform how we live, work, and think.)
Data collection List of libraries with discovery services > Searched on lib-web-cats Surveyed Libraries > Discovery service Implemented > Implementation Date (month/year) > Search box location > Marketing effort 149 Libraries Gave Approval > 33 libraries selected for this phase > 6 for each of the 4 major discovery services and a group of 9 libraries with no service
Dataset 33 Libraries – 28 US, 2 CA, 1 each from UK, AUS, NZ – WorldCat book holdings > Average: 1,114,193 ; Range: ~300k to ~2.6mil Implementation dates (Discovery Libraries): > 2010 (3), 2011 (19), 2012 (2) 6 Publishers 9,206 Journals 163,545 Usable Observations
Methodology Compared COUNTER JR1 total full text article views for the 12 months before vs 12 months after implementation date June 2010 Start Implementation May 2011 May 2012 End Year 1Year 2 Included implementation month in Year 1 to ensure that both periods included an entire academic year
Examine Data for Outliers
Observations by Library & Service
Observations by Publisher
Average Usage Change By Discovery & Publisher
Analyzing Usage Change: % vs Total Use 12 months before Use 12 months after % Change Total Change Journal A % 100 Journal B % 10 Which is the better measure? Is it the same for publisher- & journal-level data?
Reducing variation due to institution size Currently converting to change per FTE Values are shown as x 1,000 to bring the change metric back per journal-library combination to a minimum of JISC Discovery study took a similar approach
Average Usage Change By Discovery & Publisher Per Journal & Per 10,000 FTE
Full Model Including Discovery Service, Publisher, and Library
Does the effect of discovery service differ across libraries? Library Library 16-21Library 22-27Library Library 1-9
Nested ANOVA Model [all three factors – preliminary results]
Does usage change vary across libraries? Institution (sorted by Mean Change)
Does usage change vary across publishers? Publisher (sorted by Mean Change)
Does usage change vary across discovery services?
Publisher Does the effect of discovery service differ across publishers?
Results Can we detect differences between Discovery Services, Publishers, and/or Libraries and/or their interactions? Library – Yes Publisher – No Discovery Service – Yes Differential discovery service effect by publisher – Yes
Next Steps Design & test for effects of: – Aggregator full text availability – Publisher Size – Journal Subject – Overall usage trends (Requires Disc Srvc ‘control’) – Configuration options in Discovery services Expand pool of libraries Perhaps explore WHY
Sharing Data With participating libraries – Customized reports for each library With participating publishers – Customized reports for each publisher – Presentations as requested With discovery vendors – Presentations as requested In publications and presentations – Maintaining anonymity of data
Sharing SCELC library experiences with Discovery Systems Lala Badal, California Lutheran University (WorldCat Local) Linda Wobbe, Saint Mary's College (Ebsco Discovery Service) Beth Namei, University of Southern California (Summon) Panel Moderator: Jason Price (SCELC) SCELC Colloquium March 5, 2014
Ten Minute Assessments 1)Two institutional goals each a) All the same - Percent of content discoverable b) All different - Choose one thats interesting and assessable 1)Impact of your discovery system on instruction and reference 1)What is the single biggest factor that would increase use of your institution’s discovery system?
WorldCat Local Discovery Service at CLU Lala Badal, California Lutheran University March 2014
CALIFORNIA LUTHERAN UNIVERSITY 35 undergraduate majors and 34 minors. Graduate programs – doctorates in educational leadership, higher education leadership and clinical psychology. Master’s degrees in education, psychology, computer science, business administration, public policy and administration, information systems and technology, and economics. Total enrollment – 4,282 students. PEARSON LIBRARY Collection features about 132,000 physical volumes, 130 active print periodicals, 158 databases, 219,000 eBooks, 65,000 fulltext journals, and 10,500 streaming online e-videos. WorldShare Management Services & WorldCat Discovery System was implemented in September 2011.
Discovery System that o Provides single point access to many library research resourceslibrary research resources - In addition to our print collection, 80% of the library online resources overall are discoverable and searchable in our WorldCat Local. o Enables positive end user experience o Increases usage of the subscribed electronic resources
Percentage of discoverable and searchable resources by material type
Full-text downloads: pre and post discovery system assessment
Online Catalog Usage Selected Year (January 2013 – December 2013) Total: 472,907 Selected Period (January February 2014) 52 Weeks Prior Total: 391,151Total: 64,159
Use at Reference Using WorldCat Local for reference assistance is the “default action” for our Reference/Information Commons “staff”. If the discovery service search does not yield relevant results, then they start using subject related databases and/or research guides.
Impact on Instruction The WorldCat Local introduced to all lower–division classes. All 4 librarians at CLU teach the discovery layer and if needed additional resources (specific databases, e- journals, websites, and etc.) introduced as well. History Subject Guide Based on the CLU librarians impute and available research on impact of discovery systems on information literacy sessions, our Information Literacy Manager outlined why, when and how we use DS in instruction
Based on the CLU librarians impute and available research on impact of discovery systems on information literacy sessions, our Information Literacy Manager outlined why, when and how we use DS in instruction: Impact on Instruction ProsCons Multidisciplinary searchingLarge result sets Intuitive information retrieval; less of a need to teach searchingSome lack of relevant results Helps identify useful databasesNot knowing how results are indexed Teach at the reference/IC desk Some resistance from instruction librarians. Obviates/renders unnecessary teaching students search process Good for articles when few are neededNot precise enough for graduate-level research Geared more to undergraduatesItems/articles may not be covered in databases Ease of use Masks the complexities of the search process; makes it appear easier than it really is One-stop-shopping. Easier to sift through all the database offeringsLess focus on differences in resources found Audio/video content more visible Good for wide-range of topics/interdisciplinary Good for searching a range of formats and materials Shifts student thinking to critically evaluating what they found rather than how to search Shift away from “brand names” to streamlined searching Instruction approaches Introduce WCL as a place to launch your research, as one-stop shopping. Metaphor: A discovery tool is similar to a large department store such as Wal-Mart where everything is available and the quality of the merchandise can vary, whereas a subject database is more comparable to a boutique store, smaller selection but higher quality. Buck & Steffy (2013) Class Activities Have students explore the discovery tool and a more conventional database to discover similarities and differences. Then have a class discussion about the value of each tool. Have students work in teams of two to work on different options for refining a search and share the experience with the class. Have students list the ways they might use a discovery tool in their future work. Quick Writes (See lesson plan on the Discovery Tool vs. the Web) WCL Lesson Plan - IL Session
What is the single biggest factor that would increase use of WCL discovery system at CLU? AWARENESS
Unique Features: - Allows users to discover relevant content beyond the library specific holdings -Provides librarians with collection development tool and generates more PDA through ILL
-Provides patrons with opportunity to save searches and results, create and share reading lists and bibliography. Unique Features:
-Provides patrons with opportunity to save searches and results, create and share reading lists and bibliography. Unique Features:
D ISCOVERY S ERVICE A SSESSMENT Linda Wobbe Saint Mary’s College of CA 2014
Reference Desk Do you use Discovery at the Reference Desk? YES: 100%
Reference YES: as a way to retrieve known articles. YES: when I'm not sure what discipline a topic will fall into. YES: when no results are found in the subject specific database, then I'll show Multisearch to "discover" things that might be hiding somewhere else. YES: students often aren't sure whether they want a book or article YES: students at the desk need something NOW and Multisearch is great for that.
Instruction Do you teach Multisearch to undergraduates? YES: 67%
Instruction for undergraduates YES: one search box is easy for students YES: perfect for lower division courses YES: "Google-like" experience that makes research easy YES: limit results by full text
Instruction for Undergraduates NO: lower division classes focus on learning the database for that discipline. NO: brings up too much, which is overwhelming for the lower division students' needs.
Graduate Instruction Do you teach Discovery to graduate students NO: 67%
Instruction for Graduate & Upper YES: as a supplement to the disciplinary database particularly with interdisciplinary topics NO: they need more options for limiting NO: their more sophisticated needs are met in a database that has subject nuanced search features NO: The search feature in subject specific databases is detailed to the particular subjects
Increase use? Number one: Present Discovery Search as the default
How to increase use? Improve precision Material type limiters Discipline-specific limiters Take advantage of catalog scopes Sign truce with ProQuest Would percentage included to 60% from 50% Enhance reference handbook and statistical resources content
Impact & Assessment of USC Beth Namei, University of Southern California 3/5/2014
USC’s Two Major Discovery Service Implementation Goals: #1:Provide better discoverability of our subscription and purchased content (via a unified access point) #2: Provide (more) relevant results
Goal #1: Provide better discoverability of our subscription and purchased content (via a unified access point)
85% (647) of our database content is indexed by Summon
91% (56,980) of our current journals (with active ISSNs) are indexed in Summon
OpenURL ClickThroughs to Full-Text Summon added as default search option on the libraries’ homepage (July 2010) Summon rolled out Direct Linking to Full- Text, bypassing the OpenURL link resolver (Nov. 2011)
Top Referring Sources to Full-text Content (via our OpenURL link-resolver)
In March 2013, 32 A&I databases were added to USC’s Summon instance. This led us to revise goal #2: Provide better discoverability and access to information, via a single search box, regardless of whether we own or subscribe to the content.
March 2013: 32 A&I databases were turned on in Summon (over 134 million records)
New ILL Accounts Created There was a 25% increase in new ILL accounts after March 2013, when USC added an ILL button to Summon
Goal #2: Provide (more) relevant results
Typical complaints about our catalog: Even if you know the title of the book you're looking for, HOMER searches often result in random/not relevant results. I find myself going to WorldCat just to locate books in our library! We need a better search engine....say I was trying to find out if the library has "The Name of War" by Jill Lepore. If I search "Name of War" or "The Name of War" as the title, HOMER gives me a list of results that are totally wrong. In fact, the first result is "Domesticating Vigilantism in Africa." What?? On the other hand, if I go to Google Books or WorldCat and type in "The Name of War," Lepore's book is the very first result.
April Pre-Summon homepage
July Summon is launched as the default tab
July Summon-centric homepage (Homer tab is removed)
The catalog is still an option, just a less prominent one: via a drop- down menu an icon below the main Summon search box
Summon added as default search tab (July 2010) Catalog search tab removed from homepage (July 2012)
Over 3 Million Summon Searches in 2013
How Users are Getting to the Catalog (2013)
Success! We have had no complaints about our catalog’s (bad) relevancy since July 2012.
But…users are still not completely satisfied with the results they’re getting from Summon
Usability Study of the Homepage, 2013 The USC’s version of Quick Search just doesn’t generally turn up reliable results for me. I’ll search a very obvious keyword or a very specific keyword and it won’t turn up the most relevant results first even though I know the highly relevant results are in there it won’t bring them up so it’s probably a backend USC libraries problem with the Quick Search function. But because it’s difficult to narrow down by content and by type that I want and because the results just aren’t that relevant or they don’t turn up the best results first, I tend not to use Quick Search. Unless I’m feeling really, really lazy and I have to turn something in in 20 minutes and I’m like ‘whatever’s on top, I’ll take that!
What effect has implementation of Summon had on library instruction and reference service at USC?
Results from instruction survey Surveyed 47 instruction/reference librarians; 25 responded (53%) 14 out of 15 librarians who teach introductory library sessions for freshman writing courses teach Summon: o 1 does not teach Summon at all o 3 spend 1/4 of the class session demonstrating it (10-20 minutes), but also demonstrate 1-2 (or more) other databases/tools. o 6 briefly demonstrate it (no more than 5 minutes) before moving on to demonstrating other databases/tools (most of these respondents said they felt obliged to address it since it was so prominent on our website) o 5 spend the majority of their teaching time demonstrating it
Do you teach Summon in upper level/subject specific courses? Yes: 12 No: 9 n/a: 4 Do you use Summon at the Reference Desk? Yes 11 No: 12 n/a: 2
In what ways (if any) has incorporating Summon into your instruction sessions changed your teaching? hasn’t changed my instruction at all allows for more time on other resources I spend less time with other [resources] to incorporate this one allowed for less lecture time spent on our webpage and what a database is and more focus on content type, evaluations, building a search. Also: I have significantly cut down my lecture time to allow them to figure out these things through hands on activities. I spend more time talking about the information cycle and what the different source types mean. I think it's allowed me to focus a little more on the higher-order skills of research because they don't have to be bogged down in the tool.
What is the single biggest factor that would increase use of USC’s discovery system?