Tell lies

Detect lies

Tell truths

Believe others

Lies

Truths

Total

First session (before the interrogation)

Mean

47.5

63.8

68.0

58.8

55.6

63.4

59.5

SD

20.2

20.1

16.8

20.0

16.5

13.9

11.4

Second session (after the polygraph test)

Mean

49.8

63.8

67.8

59.9

56.8

63.8

60.3

SD

20.9

19.7

16.8

19.3

17.2

12.1

11.2

Across sessions

Mean

48.6

63.8

67.9

59.3

56.2

63.6

59.9

SD

18.7

18.4

15.5

18.2

15.6

12.1

10.6