ARL Statistics In recognition of Kendon Stubbs’ contributions Webcast Washington, DC October 9, 2003 Martha Kyrillidou Senior Program Officer for Statistics and Measurement Julia Blixrud Assistant Executive Director, External Relations Mark Young Statistics Research Assistant

Kendon Stubbs (retired 2003) Photo Credit: Hoke Perkins Karin Wittenborg and Kendon Stubbs (University of Virginia) A tribute to Kendon Stubbs is also available at:

Why are they important? Longest and most reliable data series (started in 1908 with the Gerould Statistics) Describe level of investment Define membership for the Association of Research Libraries Used for budget justification purposes Used for benchmarking with other peer institutions Describe trends in scholarly communication and for research libraries in general

Data audit procedures Calculation and logical errors Percent Increases – how large is too large of an increase: Comparison from year to year Summary Statistics Trends in key indicators

Data audit procedures Calculation and logical errors Percent Increases – how large is too large of an increase: Comparison from year to year Summary Statistics Trends in key indicators

Data audit procedures Calculation and logical errors Percent Increases – how large is too large of an increase: Comparison from year to year Summary Statistics Trends in key indicators

Availability of data and publications on the web Download preliminary data and print your own survey results Machine-readable data – ARL Statistics publications (pdf) Research Libraries Trends introduction, graphs+ (html) Electronic edition of the ARL Statistics at the Geostat Center at the U. of Virginia

Upcoming Changes Volumes Held Collectively Expenditures for Electronic Resources move into the annual ARL Statistics E-Metrics pilot move into an annual supplementary survey Publish ARL membership criteria index as new table in the ARL Statistics publication

Volumes held collectively    Volumes in Library: (See instruction Q1-4.) 1a.Volumes held June 30, (Exclude microforms, uncataloged govt. docs., maps, a/v material. Record figure reported last year or footnote adjusted figure on p. 4.) 2.Volumes added during year -- Gross. (See instruction Q2.) (Exclude microforms, uncataloged govt. docs., maps, a/v material.) 2a.Volumes withdrawn during year. (Exclude microforms, uncataloged govt. docs., maps, a/v material.) 3.Volumes added during year -- Net. (Subtract line 2a from line 2.) 1.Volumes held June 30, (Add line 1a to line 3.) 1b.Volumes held collectively June 30, c.Volumes held June 30, 2003 (locally and collectively) (Add line 1 to line 1b)

From Supplementary into the ARL Statistics 1. Computer Files (one-time/monographic purchase) 2. Electronic Serials 3. Bibliographic Utilities, Networks, and Consortia 3a. Library 3b. External 4. Computer Hardware and Software: 5. Document Delivery/Interlibrary Loan Service Hours and Staffed Services Points 9. Number of staffed library service points 10. Number of weekly public service hours

Use of Networked Resources & Related Infrastructure U1 – Number of electronic reference transactions U2 – Number of logins (sessions) to electronic databases U3 – Number of queries (searches) in electronic databases U4 – Items requested in electronic databases U5 – Virtual visits to library’s website and catalog

Library Digitization Activities D1 – Size of library digital collection D2 – Use of library digital collection D3 – Cost of digital collection construction & management   

Feedback please ?   