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1

Thoughts on the Inconclusive Zone in Comparison Question Test (CQT)

100%

Ginton A.

European Polygraph

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2022

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vol. 16

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issue 2(56)

9-21

EN

The Inconclusive Zone, in one form or another, is an integral part of almost any data analysis method of CQT. It represents the existence of built-in uncertainties in the test and indicates how the test, in general, and the examiners, in particular, bear this limitation in practice. Unfortunately, it is so common that most examiners tend not to spend too much time and attention wondering about its meaning. The following are some reflections on the concept of an Inconclusive Zone, and its actual use, including some resulting recommendations. That includes internal aspects of the test, such as the relation between the extent of using multiple comparison points between relevant and comparison questions and the optimal Inconclusive Zone size. External aspects affecting the Inconclusive Zone’s size and shape are also stressed when looking at the CQT through a prism of aiding decision-making rather than a mere means to sort truth from lies.

2

From a Rigid Cover to an Elastic One Via a Blanket too Short. An Adaptive Polygraph Approach

100%

Ginton A.

European Polygraph

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2021

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vol. 15

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issue 2 (54)

9-30

EN

The Polygraph test or the Psychophysiological Detection of Deception is a short blanket that cannot cover everything without paying in errors; a clever polygraph examiner and a wise usage of polygraph must make a choice whether to cover the feet or the head with this short blanket and conduct the examination accordingly. But a wiser approach should look to turn the short blanket into an elastic cover that can deal differently with different people and different situations. Following two-three decades of blessed efforts to develop strict standardization in the field, the time has come to start steering the polygraph ship back to greater flexibility and creativity, this time relying on scientific thinking and knowledge. Thus, contrary to the existing trend in the field, I call to drive modern Polygraphy towards developing a scientifically based approach that follows the motto of “Different Things to Different People and Different Situations”. In other words, I call for developing an adaptive approach or Adaptive Polygraphy. The Relevant Issue Gravity (RIG) Theory (Ginton, 2009) is presented here as a major theoretical and practical carrier for evolving and shaping the Adaptive Polygraphy. The article analyzes the current situation and draws some lines to follow in developing an Adaptive Polygraphy approach.

3

Evidence Based Practice Integration into Polygraph Practice: A suggested paradigm

63%

Amsel T. T., Ginton A.

European Polygraph

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2021

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vol. 15

|

issue 1 (53)

9-28

EN

The philosophy of evidence-based practice advocates professionals to rely on scientific evidence. Although the idea seems obvious, misuse of the philosophy raised controversy, which created confusion and misunderstanding of the concept. Yet, since it was introduced in the nineties to the medical community and despite the controversy, it gained more and more disciples and was embraced by nonmedical practitioners, including the polygraph profession. In the last decades, the polygraph community has gradually abandoned the intuitive-based polygraph practice that relies on less scientifically rooted subjective procedures and advanced toward evidence-based polygraph practice. This paper describes the evidence-based practice in general and details the practical aspects of evidence-based polygraph practice in particular, along with discussing the limitations of the current scientific research. It questions the current bone-tone trend to implement an extreme Evidence-Based approach into the polygraph practice, suggesting the practitioner to avoid a rigid “one size fit all” standardized protocols which are advocated as a must on the way to earn scientific recognition, whereas, in fact, it is the unfortunate outcome of lack of differential research data. As in the medical field, in-where the Evidence-Based practice managed to incorporate the clinical experience of experts with the hard research evidence and has not disregarded their valuable knowledge and experience, the present article calls for adopting this integrative approach in the polygraph field too and adjust the protocols to the specific circumstances of the case and the examinee in a “tailor-made” mode, which is based on existing data and flexible thinking wherever there is no data to rely on, as was suggested under the concept of “Adaptive-Polygraphy” (Ginton, 2013).

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3 European Polygraph

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1 2022

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Thoughts on the Inconclusive Zone in Comparison Question Test (CQT)

From a Rigid Cover to an Elastic One Via a Blanket too Short. An Adaptive Polygraph Approach

Evidence Based Practice Integration into Polygraph Practice: A suggested paradigm