Your SlideShare is downloading. ×
Journal impact factors: use and misuse
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

Journal impact factors: use and misuse

135
views

Published on

You can also watch a recorded version of this presentation: https://connect.le.ac.uk/p45xvmgwomv/

You can also watch a recorded version of this presentation: https://connect.le.ac.uk/p45xvmgwomv/


0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
135
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
7
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. www.le.ac.uk/library Journal impact factors: use and misuse Ian Rowlands University Library Research Festival 2014 Research Bytes 3
  • 2. Journal impact factors What are journal impact factors? Where can I find them? Three common pitfalls
  • 3. What are journal impact factors?
  • 4. The journal impact factor 2012 example papers published in 2010 papers published in 2011 +
  • 5. The journal impact factor 2012 example citations accrued during 2012 papers published in 2010 papers published in 2011 + ÷
  • 6. The journal impact factor 2012 example 100 citations accrued during 2012 30 papers published in 2010 20 papers published in 2011 + ÷ JIF = 100 citations / 50 papers = 2.0
  • 7. Where can I find them?
  • 8. Where can I find them?
  • 9. Journal Citation Reports Journal Citation Reports ® Thomson Reuters 2012 Immunology subject category
  • 10. Three common pitfalls 1. Don’t compare IFs across disciplines
  • 11. Don’t compare IFs across disciplines 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 History Mathematics Economics Business Polymer science Materials science Genetics and heredity Multidisciplinary sciences Mean journal impact factor (2012) Source: Thomson Reuters Journal Citation Reports
  • 12. Don’t compare IFs across disciplines 1 2 3 4 5 6 7 8 9 10 11 12 13 Citationsrecieved Years after publication Genetics Mathematics
  • 13. Don’t compare IFs across disciplines 1 2 3 4 5 6 7 8 9 10 11 12 13 Citationsrecieved Years after publication Genetics Mathematics
  • 14. Three common pitfalls 2. Take the rankings with a pinch of salt
  • 15. Take the rankings with a pinch of salt -125% -100% -75% -50% -25% 0% 25% 50% 75% 100% 125% 150% 175% 0 100 200 300 400 500 600 700 800 900 1000 Mean%changeinIF(2011on2010) Journal size (2011 articles)
  • 16. Take the rankings with a pinch of salt
  • 17. Three common pitfalls 3. Don’t judge an article by its cover
  • 18. Don’t judge an article by its cover
  • 19. Don’t judge an article by its cover top 10% of articles generate 40% of all citations …
  • 20. Don’t judge an article by its cover top 10% of articles generate 40% of all citations … … 82% of articles are `below average’
  • 21. Don’t judge an article by its cover top 10% of articles generate 40% of all citations … … 82% of articles are `below average’ Bill Gates gets on the train …
  • 22. Don’t judge an article by its cover 2.051 49.926 54.333 2.076 2.244 2008 2009 2010 2011 2012 Acta Crystallographica Section A Journal impact factor
  • 23. Summary • DO use IFs to target influential journals for reading or potential publication • DON’T compare IFs across disciplines • DON’T take the rankings too literally • DON’T confuse journal and article level metrics • DO apply common sense
  • 24. www.le.ac.uk/library TOMORROW Don’t lose credit for your research Ian Rowlands University Library Research Festival 2014 Research Bytes 4 Attenborough ATT212, 13:00-13:30