Download - OAPEN-NL - Sales and scholarly impact
OAPEN-NLSales and scholarly impact
OAPEN-NL Final Seminar22 October 2013
Ronald Snijder
• Research setup• Results• Conclusion
Contents
• Two groups:– Experimental group: 50 OA titles– Control group: 36 titles
• What to measure:– Sales– Discovery– Online consultation– Citation rate
• Period: 2011 – August 2013• Statistical procedure: ANOVA
Research setup
Criteria for control group: • Subject• In print, but not in OA• In Google Books: 10% available for viewing • Publishing year: no more than 1 year before
OA title• Print run: difference should not exceed 15%• Price: difference should not exceed 15%
Control group
Sales data:• Measured in copies sold per month• Data from first month of sales and onwards
front list vs. back list sales
• Turnover is not taken into account
Sales
• No evidence of effect: – F (1,1366) = 0.084, p = .771
• Mean sales OA: 8.67• Mean sales closed access: 8.35
Sales: results
Discovery data:• One platform for all titles• Measured using Google Books: “Book Visits”• OA titles: 100% visible in Google Books• Control titles: 10% visible in Google Books
Discovery
• Open Access has significant effect on discovery:– F (1,681) = 13.783, p < .001
• Mean Book visits OA: 755.70• Mean Book visits closed access: 530.45
Discovery results
Consultation data:• Measured using Google Books: “Page views”
• OA titles: 100% visible in Google Books• Control titles: 10% visible in Google Books
Online consultation
• Open Access has significant effect on online consultation:– F (1,681) = 25.8, p < .001
• Mean Page views OA: 863.84• Mean Page views closed access: 561.19
Online consulation results
Citation data:• Be aware of problems:– Time frame is short – citations in other books?– Few books per subject – differences in citations
per academic discipline• Measured in Google Scholar
Citation rates
• No evidence of effect: – F (1,67) = 0.13, p = .909
• Mean citations OA: 3.08• Mean citations closed access: 2.89
Citation rates: results
More results: OAPEN downloads
Publishing in Open Access has positive effect on:• Discovery• Online consultation
No effect could be found for:• Sales • Citation rates
Expectations of authors and publishers:• Divided opinions on sales• Positive expectations:
– Citations not found– Discovery found– Online consultation found
Conclusion
More on OAPEN:• www.oapen.org• www.oapen.nl• www.oapen-uk.jiscebooks.org• Twitter:@Oapenbooks
Directory of Open Access Books:• www.doabooks.org• Twitter: @Doabooks
Contact me:• [email protected] • Twitter: @Ronaldsnijder
Thank you!
