Schnitker and Emmons (2007) found evidence for an inverse relationship between patience and negative affect and between patience and depression, but a positive relationship between patience and self-reports of certain negative health outcomes, including headaches, acne, and ulcers.
They found that trait stability increased from a correlation .31 in childhood to .54 during the college years, to .64 at age 30, and then it reached a plateau around .74 between the from age 50 until the age of 70. What we can infer from these results is that personality seems to stabilize with increasing age.
Symptoms of Antisocial Personality Disorder. Antisocial personality disorder is diagnosed when a personâs pattern of antisocial behavior has occurred since age 15 (although only adults 18 years or older can be diagnosed with this disorder) and consists of the majority of these symptoms: personality disorder is an enduring pattern of inner experience and behavior that deviates from the norm of the individualâs culture. The pattern is seen in two or more of the following areas: cognition; affect; interpersonal functioning; or impulse control.