why are there differences in citation impact?

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Why are there differences in citation impact?. Some success factors in gaining citation impact. Michael Norris. The Anna Karenina Principle. Tolstoy’s first sentence in Anna Karenina: ‘All happy families resemble one another, each unhappy family is un-happy in its own way.’ - PowerPoint PPT Presentation

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Why are there differences in citation impact?

Some success factors in gaining citation impact

Michael Norris

The Anna Karenina Principle

Tolstoy’s first sentence in Anna Karenina:

‘All happy families resemble one another, each unhappy family is un-happy in its own

way.’

Tolstoy, L. 1998. Anna Karenina. Trans. Maude, L & Maude A. Oxford: University Press Bornmann, L. & Marx, W. 2012. The Anna Karenina Principle: a way of thinking about success in science. JASIST 63(10), 2037-2051

Or making films in Hollywood

William Goldman

‘Nobody knows anything’

Goldman, W . 1996. Adventures in the screen trade:: a personal view of Hollywood and screenwriting. London: Abacus

Factors which can affect citation impact

•Journal Prestige •Collaboration•Matthew and Matilda Effects

Journal Impact Factors / SCImago Journal Rank

• In journals indexed by WoS or Scopus

• Overall the higher the impact the better

• But to the right audience

• Who will cite you

Data - University of Surrey & 1994 Group

Subject areas made up from faculties

Mean JIF 2006-10

Mean citation rate 2006-10

Significant correlation 0.64 to 0.69*

InstitutionAvg IF Avg cites

York 2.03 7.94

Imperial 1.73 6.5

Exeter 1.71 4.79

E Anglia 1.66 6.11

Lancaster 1.54 5.02

Leicester 1.51 4.66

Holloway 1.46 5.68

Bath 1.43 5.2

Durham 1.43 5.57

Surrey 1.43 4.46

Reading 1.34 4.86

Sussex 1.32 7.52

Birkbeck 1.31 3.62

Q Mary 1.28 3.45

St Andrews 1.24 3.24

Loughborough 1.23 4

Essex 1.2 3.86

* Subject Pearson Spearman

Eng/Physical 0.64 0.89

Business/Econ 0.69 0.7

Collaboration

• Domestic• International • Countries

China & UK International Impact

InCites - Thomson Reuters

InCites - Thomson Reuters

UK Mathematics - Impact

InCites - Thomson Reuters

UK Chemistry - Impact

Collaboration

Data - SCImago Journal and Country Rank

 Mean citation count by publication status

All International National National Ext National Int  Cardiff 2.36 3.17 2.08 2.26 2.04

Sheffield 4.44 6.44 3.84 5.93 3.40

Southampton 3.21 5.03 2.58 7.80 2.00

Surrey 2.00 3.17 1.71 4.78 1.35

Collaboration - Electronic Engineering

Data – Thomson Reuters Web of Science

The End!All International National National Ext National Int

  E Anglia 11.94 14.49 10.29 11.84 8.97

Leicester 11.51 12.63 10.86 8.91 8.91

Surrey 7.68 5.60 9.23 8.88 9.47

Sussex 9.08 8.91 9.26 14.09 6.20

Collaboration - Chemistry

Mean citation count by publication status

Data – Thomson Reuters Web of Science

For unto every one that hath shall be given, and he shall have abundance : but from him that hath not shall be taken away even that which he hath….

Matthew 13:12

Merton, R.K. 1968. The Matthew effect in science. Science 159(3810), 56-63.

Matthew and Matilda Effects

Success breeds success

The rich get richer and the poor get poorer

Mathew and Matilda Effect

Source – SciVal Strata

Mathew and Matilda Effect

Source – SciVal Strata

The End!

Michael Norris University of Surrey

michael.norris@surrey.ac.uk

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