Final answer:
The perspective of behavioral symptoms of truthful and untruthful subjects can be studied from a psychological standpoint. Individuals who underreport psychological problems may provide unrealistically positive responses, while surveys and self-report measures may not always provide accurate information. Behavioral observations and validity scales can help in capturing the actual behaviors of individuals.
Step-by-step explanation:
The perspective of behavioral symptoms of truthful and untruthful subjects can be studied from a psychological standpoint.
One study conducted by DePaulo et al. (1996) explored lying in everyday life and found that individuals who underreported psychological problems were more likely to provide unrealistically positive responses, such as claiming to have never told a lie. This can be identified through the validity scale known as the Lie Scale.
In addition, surveys and self-report measures need to be interpreted with caution as people may not always provide accurate responses. Individuals may lie, misremember, or respond in a way that portrays them in a positive light. For example, individuals might report drinking less alcohol than they actually do.
This highlights the importance of considering behavioral measures alongside self-report measures in order to capture how individuals truly behave.
Overall, studying the behavioral symptoms of truthful and untruthful subjects requires understanding the biases and limitations of self-report measures and incorporating behavioral observations or validity scales to account for discrepancies between self-reported and actual behaviors.