Final answer:
The results of a polygraph could be inconclusive if the examiner misinterprets the physiological responses, an error that could arise from the subjective nature of polygraph result assessment.
Step-by-step explanation:
According to the flowchart, one way that the results of a polygraph could be inconclusive is if the examiner misinterprets the physiological responses. A polygraph measures physiological arousal such as increased heart rate, respiration rate, and sweating, under the assumption that these may indicate dishonesty. However, since lying is not proven to be associated with a particular physiological pattern, the skill and interpretation of the examiner are crucial. Misinterpretation of these physiological signals can lead to inconclusive or inaccurate results. Additionally, other factors like the subject intentionally manipulating the test or the examiner failing to calibrate the polygraph machine could also skew the results, but misinterpretation is a direct consequence of the examiner's assessment, which is central to the polygraph's process.