Effects of Comparison Question Type and Between Test Stimulation on the Validity of Comparison Question Test
Abstract
This study examined the validity of two approaches to the comparison question test. Probable-lie and directed-lie comparison questions were evaluated in a mock crime experiment with 250 participants. Review of questions between charts was also manipulated Participants took a DACA style single issue polygraph examination. Resultant polygraph data were evaluated with the Objective Scoring System. Analyses found no evidence for significant differences between the validity of the probable-lie and directed-lie approaches. However, there was a significant effect of between repetition stimulation on decisions, reflecting an increased number of true positive outcomes when stimulation was employed and a higher number of false positive errors without stimulation. Although there were no significant effects of the approach to comparison questions, there is much to recommend the directed-lie approach: It is simpler and far more standardized. It is easy to teach and to use. A very small number of directed-lie questions can be used for essentially all examinations. These and other positive factors suggest that the directed-lie should be considered for wider application in field settings. The significant positive effect for between repetition stimulation recommends this practice for adoption in the field.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 08, 2009
- Accession Number
- ADA505303
Entities
People
- Charles R Honts
- Racheal Reavy
Organizations
- Boise State University