A longitudinal study of German young adults found that those who had settled into a stable romantic relationship __________ in conscientiousness and __________ in neuroticism.

A) decreased; increased
B) increased; decreased
C) increased; increased
D) decreased; decreased

Longitudinal Study

A research method that studies the same subjects over a period of time, allowing for the observation of changes or developments.

Neuroticism

A behavioral quality defined by irregular moods, worry, and lack of emotional steadiness.

Conscientiousness

A personality trait characterized by organization, thoroughness, reliability, and a strong sense of duty.