Final answer:
The principle that the most talkative person at a party is likely to be the most talkative at the DMV is an example of relative consistency.
Step-by-step explanation:
The principle that the person who is most talkative at a party is also likely to be the most talkative at the department of motor vehicles (DMV) is an example of relative consistency.
This principle suggests that an individual's behavior tends to remain relatively consistent across different situations, such as being talkative at both a social gathering and while waiting at the DMV.
This concept highlights the idea that personality traits can extend beyond specific contexts and be relatively stable across different environments.