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Table 2 Sensitivity and specificity as a function of iThenticate scores

From: Plagiarism in submitted manuscripts: incidence, characteristics and optimization of screening—case study in a major specialty medical journal

iThenticate—overall similarity %

Sensitivity

Specificity

Sensitivity + specificity

0

1.000

0.003

1.003

2

1.000

0.018

1.018

3

1.000

0.045

1.045

4

1.000

0.096

1.096

5

1.000

0.156

1.156

6

1.000

0.201

1.201

7

1.000

0.276

1.276

8

1.000

0.333

1.333

9

0.985

0.429

1.414

10

0.955

0.483

1.438

11

0.939

0.559

1.498

12

0.924

0.670

1.594

13

0.894

0.727

1.621

14

0.879

0.769

1.648

15

0.848

0.805

1.653

16

0.818

0.814

1.632

17

0.758

0.847

1.604

18

0.742

0.862

1.604

19

0.712

0.889

1.601

20

0.697

0.907

1.604

21

0.697

0.919

1.616

22

0.636

0.934

1.570

23

0.621

0.955

1.576

24

0.561

0.967

1.528

25

0.470

0.967

1.437

26

0.394

0.970

1.364

27

0.364

0.982

1.346

28

0.318

0.985

1.303

29

0.303

0.988

1.291

30

0.258

0.988

1.246

31

0.242

0.988

1.230

32

0.197

0.991

1.188

33

0.167

0.991

1.158

34

0.167

0.994

1.161

35

0.167

0.997

1.164

37

0.152

0.997

1.149

38

0.136

0.997

1.133

39

0.121

1.000

1.121

40

0.106

1.000

1.106

41

0.091

1.000

1.091

42

0.076

1.000

1.076

43

0.061

1.000

1.061

44

0.045

1.000

1.045

45

0.030

1.000

1.030

48

0.015

1.000

1.015

53

0.000

1.000

1.000

  1. Italic values indicate the score that maximized both sensitivity (at 85 %) and specificity (at 80 %)