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:• r.snijder@oapen.org • Twitter: @Ronaldsnijder

Thank you!