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Table 2 Schemes for assigning credit to authors of multi-author papers

From: A simple, generalizable method for measuring individual research productivity and its use in the long-term analysis of departmental performance, including between-country comparisons

No. of authors

First author

Second

Third

Fourth

Fifth

(A) Monotonic scheme proposed by Howard et al.[6].

1

1.0000

    

2

0.6000

0.4000

   

3

0.4737

0.3158

0.2105

  

4

0.4154

0.2769

0.1846

0.1231

 

5

0.3839

0.2559

0.1706

0.1137

0.0758

(B) FLAE scheme proposed by Tscharntke et al.[8].

1

1.0000

    

2

0.66667

0.33333

   

3

0.54545

0.18182

0.27273

  

4

0.50000

0.12500

0.12500

0.25000

 

5

0.47619

0.09524

0.09524

0.09524

0.23810

(C) FLAE scheme proposed by Ellwein et al.[3].

1

1.0000

    

2

0.5556

0.4444

   

3

0.3846

0.3077

0.3077

  

4

0.3086

0.2469

0.1975

0.2469

 

5

0.2577

0.2062

0.1649

0.1649

0.2062

(D) FLAE scheme proposed in the present study. For more than two authors, the first author is assigned 50% of the credit, the last author 30%, and the also-rans have the remaining 20% divided between them.

1

1.0000

    

2

0.7000

0.3000

   

3

0.5000

0.2000

0.3000

  

4

0.5000

0.1000

0.1000

0.3000

 

5

0.5000

0.0667

0.0667

0.0667

0.3000