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The Finapres (Volume Clamp) Recording Method in Psychophysiological Detection of Deception Examinations: Table 4 (Forensic Science Communications, October 1999)

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October 1999 - Volume 1 - Number 3


The Finapres (Volume Clamp) Recording Method in Psychophysiological Detection of Deception Examinations: Experimental Comparison With the Cardiograph Method

Table 4:

Outcomes of Independent Examiner Evaluations and Automated Computer Evaluations

  Frequency (Percent)
Group CorrectErrorIncon-
clusive
Correct
Decisions
  Decisions Using Examiner Evaluations
Innocent  
Finapres 

14 (70)

3 (15)

3 (15)

14/17 (82)*

Cardiograph

10 (50)

5 (25)

5 (25)

10/15 (67)

Finapres/Cardiograph

10 (50)

2 (10)

8 (40)

10/12 (83)*

Guilty  
Finapres

14 (70)

1 (5)

5 (25)

14/15 (93)*

Cardiograph

11 (55)

3 (15)

6 (30)

11/14 (79)*

Finapres/Cardiograph

11 (55)

3 (15)

6 (30)

11/14 (79)*

 Decisions Using Automated Evaluations
Innocent  
Finapres

16 (80)

3 (15)

1 (5)

16/19 (84)*

Cardiograph

15 (75)

3 (15)

2 (10)

15/18 (83)*

Finapres/Cardiograph

14 (70)

0 (0)

6 (30)

14/14 (100)*

Guilty  
Finapres

14 (70)

2 (10)

4 (20)

14/16 (88)*

Cardiograph

11 (55)

3 (15)

6 (30)

11/14 (79)*

Finapres/Cardiograph

13 (65)

4 (20)

3 (15)

13/17 (76)*

Accuracy of decisions was tested using c2 tests of frequency correct versus frequency error. The decisions for the Finapres/cardiograph group examinations were based on skin conductance, respiration, and cardiograph recordings.

* p < .05.

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