Final answer:
Individuals with high levels of neuroticism are more likely to start smoking and less likely to quit, often using smoking as a coping mechanism, while those high in conscientiousness may find it easier to quit due to their self-discipline.
Step-by-step explanation:
People displaying neuroticism are more likely to start smoking and are less likely to quit successfully. Neuroticism is one of the Big Five personality traits and is characterized by a tendency to experience negative emotions such as anxiety, depression, and anger. People high in neuroticism may use smoking as a coping mechanism to manage their emotional states, but this reliance on smoking can make quitting more challenging. On the contrary, those high in conscientiousness tend to exhibit self-discipline and control, which can be beneficial in successfully quitting smoking.