- Title
- The correlation between polygraph results and nonverbal behaviour
- Creator
- Ferreira, Ian
- Subject
- Lie detectors and detection
- Subject
- Movement, Psychology of Body language Nonverbal communication
- Date Issued
- 2018
- Date
- 2018
- Type
- Thesis
- Type
- Masters
- Type
- MA
- Identifier
- http://hdl.handle.net/10948/29827
- Identifier
- vital:30782
- Description
- The long history, serious and multiple negative consequences, and the global prevalence of human deception inspired the current correlational study. According to certain researchers and practitioners, the polygraph has emerged as one of the most promising methods to detect deception. Although its use has not been without controversy, it is still one of the most frequent means used to detect human deception. In an attempt to address the continued reliance on the polygraph, often in the absence of other evidence, the current study aimed to explore and describe the relationship between final polygraph test results and nonverbal behaviour observations during the pre-interview of the polygraph test. The research design was a correlational study, which explored and described the relationship between specified nonverbal behavioural observations, and deceptive and non-deceptive indicator results, of the participants taking the polygraph test. The nonverbal movements of the head, shoulders, hands and feet were the focus of the study. The research hypothesis of the study was that participants who were identified as deceptive on the polygraph would demonstrate significant statistical differences in specific nonverbal behaviours compared to non-deceptive participants. The results indicated significant statistical difference between the hand movements between the deceptive and the non-deceptive groups who participated in the study. The nonverbal behaviour related to the two groups’ hand movements was found to show significant differences, specifically related to five specific domains, hand hold symmetrical action, right arm/hand still, left hand/finger actions, touch behaviour, and thumbs up and downwards movements. The data were described and analysed by means of descriptive and inferential statistics and significant correlational findings were discussed in relation to the relevant published literature.
- Format
- x, 126 leaves
- Format
- Publisher
- Nelson Mandela University
- Publisher
- Faculty of Health Sciences
- Language
- English
- Rights
- Nelson Mandela University
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| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Ian Ferreira.pdf | 2 MB | Adobe Acrobat PDF | View Details Download |