COUNTER: making statistics useful Peter Shepherd Director COUNTER January 2007.

COUNTER: making statistics useful

Peter Shepherd

DirectorCOUNTER

January 2007

Background

Understanding usage Different approaches Role of usage statistics

Usage statistics Should enlighten rather than obscure Should be practical Should be reliable Are only part of the story Should be used in context

How can usage statistics help us measure… Success? Value? Behaviour?

COUNTERCodes of Practice

Definitions of terms used Specifications for Usage Reports

What they should include What they should look like How and when they should be delivered

Data processing guidelines Auditing Compliance Maintenance and development of the

Code of Practice Governance of COUNTER

COUNTER: current Codes of Practice

1) Journals and databases

Release 1 Code of Practice launched January 2003 Release 2 published April 2005 replacing Release 1 in January

2006 Now a widely adopted standard by publishers and librarians 60%+ of Science Citation Index articles now covered Librarians use it in collection development decisions Publishers use it in marketing to prove ‘value’

2) Books and reference works

Draft Code of Practice published in February 2005 for comment

Final version incorporating feedback was launched March 2006

Relevant usage metrics less clear than for journals Different issues than for journals

Direct comparisons between books less relevant Understanding how different categories of book are used is more

relevant

Journal and Database Code of Practice

Usage Reports

Journal Report 1 Full text article requests by month and journal

Journal Report 2 Turnaways by month and journal

Database Report 1 Total searches and sessions by month and database

Database Report 2 Turnaways by month and database

Database Report 3 Searches and sessions by month and service

Code of Practice for books

Book Report 1 Number of successful requests by month and title

Book Report 2 Number of successful section requests by month and

title Book Report 3

Turnaways by month and title Book Report 4

Turnaways by month and service Book Report 5

Total searches and sessions by month and title Book Report 6

Total searches and sessions by month and service

Journal Report 1Full text article requests by journal

Html and PDF totals reported separately

COUNTER: deriving metrics from Journal Report 1

Local metrics For libraries and library consortia At journal, collection and publisher level To compare the cost-effectiveness of journal

subscriptions To assess the value of Big Deals

Global metrics For authors, funding agencies, libraries and

publishers At article, journal, collection and publisher level To compare quality and value

COUNTER: ‘local’ metrics

JISC (UK Joint Information Systems Committee) Funded by UK higher education funding councils Supports higher education in the use of information and

communications technologies Access to information and communication resources Advice on creation and preservation of digital archives Implications of using ICT Network services and support Research to develop innovative solutions

National overview of online journal usage Develop a reliable, widely applicable methodology Use COUNTER Journal Report 1 ‘article full-text requests’

Local metrics: JISC Project

COUNTER data was analysed in relation to: usage range Price band Subject category

Metrics derived from this analysis Trend in number of full-text article requests Full text article requests per title Full text article requests per publisher package Full text article requests per FTE user Most requested titles Usage of subscribed vs.. unsubscribed titles Cost per full-text article request Cost per FTE user

Summary report available at:www.ebase.uce.ac.uk/projects/NESLi2.htm

Local metrics: JISC project

Growth in article downloads Publisher A: 12%- 208% Publisher B: 12%- 59% Publisher C: 23%- 154% Publisher D: 22%- 81%

Cost per download Publisher A: £0.97- £5.26 Publisher B: £0.70 - £2.91 Publisher C: £0.80 - £3.29 Publisher D: £0.45 - £2.26

COUNTER: ‘global’ metrics

Impact Factor Well-established, easily understood and accepted Endorsed by funding agencies and researchers Does not cover all fields of scholarship Reflects value of journals to researchers Over-emphasis on IF distorts the behaviour of authors Over-used, mis-used and over-interpreted

Usage Factor Usage-based alternative perspective Would cover all online journals Would reflect value of journals to all categories of user Would be easy to understood

Global metrics: UKSG Project

Assess the feasibility of developing and implementing journal Usage Factors

Level of support from author, librarian and publisher communities

Data from which UF would be derived COUNTER Journal Report 1? Article numbers Process for consolidation, calculation and reporting of UFs

Factors in the calculation Level of reporting Total usage Articles

Report in April 2007 Just completed set of 29 interviews with industry leaders Wider online survey will take place in February 2007

UKSG Project: feedback

Are the COUNTER usage statistics sufficiently robust? Frustration at lack of comparable, quantitative data on journals Should items covered by restricted to articles? Many journals still have significant usage in print Diversity of views on the factors in the calculation

Specified usage period Specified publication period

Usage data is more susceptible to manipulation Will the journal be a meaningful concept in the future? Two measures with different limitations are better than one,

and UF will be derived from a set of credible, understandable data

Usage data will be used as a measure of value, whether publishers like it or not

Current issues Interface and user behaviour effects on usage

statistics E.g. downloading HTML and PDF of the same article in one

session COUNTER is testing data filter solutions, but what does the

duplicate downloading signify? Reporting separately purchasable digital archive

usage Currently all usage for a journal is usually reported together Separately purchasable archives mean we need separate

reports for archival content, or a year of publication breakdown of usage

Usage in Institutional Repositories Growth in Institutional Repository (IR) content Need for credible IR usage statistics IR usage statistics already being collected, but no standards

What to count and what not to count:- How to deal with partial open access journals How to deal with journals whose content becomes free after

a fixed time period

New Development - SUSHI

Standardized Usage Statistics Harvesting Initiative (SUSHI)

No mechanism yet for automatically retrieving, combining, and storing COUNTER usage data from different sources

NISO-sponsored XML-based SUSHI aims to provide a means to do just this, via a standard model for machine to machine automation of statistics harvesting.

COUNTER and NISO have signed an agreement to work together on the development of SUSHI. More details of SUSHI can be found at:-

http://www.niso.org/committees/SUSHI/SUSHI_comm.html

Other technologies that may impact usage

reporting

Metasearch

Also known as: Federated search Broadcast search

User presented with a single search interface Searches multiple information sources at same

time Eliminates (or assists with) resource selection Retrieve, consolidates and ranks results A new challenge for statistics

Metasearch: a new challenge

What can be affected Session counts Search counts

Why? “Search all” option or automatic

selection/search of many resources Perform simultaneous activities Optimization techniques

Prefetching

Google, and other services are introducing prefetching of links to improve performance

How it works… A user performs a search that results in a

number of results. Google will introduce <link> tags for the

first few to cause the browser to fetch in the background

The prefetched pages are loaded into browser cache

Prefetching

If the results were links to publisher full text then: Each prefetch is a full text request When the user does click the link,

another header request is made, that could be considered yet another full text request

Without some kind of control, this activity could result in significant over-counting

Prefetching

The prefetch action is identified in the HTTP header of the request

Vendors can change systems to recognize prefetch and do one of: Simply return an error (don’t deliver

full text), the end user does not see this error, or

Fulfill the request, but do not count the transaction

What do usage statistics tell us about…

Success? Value? Behaviour?

Usage statistics: measuring value

JISC Project has identified some basic metrics derived from COUNTER data

Trend in number of full-text article requests Full text article requests per title Full text article requests per publisher package Full text article requests per FTE user Usage of subscribed vs. unsubscribed titles Cost per full-text article request Differences between subject fields

But…. Limited to data from COUNTER-compliant vendors Does not distinguish between different types of usage

Usage statistics: measuring success

Impact Factor Widely used as a measure of ‘success’ for a journal But…

Citation habits vary across different scientific fields Citation patterns depend on journal type Do not cover all journals

Usage Factor? An alternative measure Relevant in applied fields, where citation levels are

lower But….

Requires global usage statistics Requires universal adoption of the same standards

Usage statistics: measuring behaviour

Usage of different components of the journal TOC, abstract, full-text, references

Variations between fields Physics, medicine

Variations between institutes Academic

Teaching, research, etc Between departments

Industrial

COUNTER Membership

Member Categories and Annual Fees (2007)

Publishers/intermediaries: £530 Library Consortia: £355 Libraries: £265 Industry organization: £265 Library affiliate: £106 (non-voting

member)

Benefits of full membership Owner of COUNTER with voting rights at

annual general meeting, etc. Regular bulletins on progress Opportunity to receive advice on

implementation

http://www.projectcounter.orghttp://www.projectcounter.org

Apply for COUNTER membership

Apply for COUNTER membership

For more information……….

http://www.projectcounter.org

Thank you!

Peter Shepherd, [email protected]