The relationship between childhood deviance and adult deviance IntroductionThe present study is a correlational design. This design will be used to find out if there is a relationship between conduct problems or childhood deviance and adult deviance. Childhood deviance will be defined as any psychological problem, conduct problem at school, such as physical fights or outbursts of anger towards teachers or classmates, adult deviance will be defined as any form of criminal record and any form of psychiatric history. .Loeber, R., Green, S.L., Lahey, B.B. (2000) . Physical fighting in childhood as a risk factor for later mental health problems. Journal of the American Academy of Child and Adolescent Psychiatry. 39, 421-428. This journal article discusses physical fighting as a child as a risk factor for later mental health problems. In some studies on this behavior it is shown that there is a strong correlation between physical fighting as a child and mental health problems as an adult. In this study the author attempts to answer three main questions.1. Does the prevalence of fighting among boys in a clinical sample differ by informant or age cohort? How high is the persistence of physical combat over a 7 year period and does it differ by age? What percentage of kids who fight stop fighting?2. Does persistent physical fighting predict future conduct disorders and mental health problems, and are multiple informant ratings a better predictor than a single informant's rating of fighting? Can a combination of previously defined risk factors other than fighting better predict future mental health problems? The authors' hypothesis is that persistent physical fighting is a risk factor for abuse in adulthood. . In conclusion of the study, the following evidence suggests that children with conduct disorders may be at risk for major mental disorders. Other findings also show that children with conduct problems also have a higher incidence of crime as adults. Antisocial personality disorder in adulthood is almost always preceded by conduct disorder in childhood. In this study, data supported the researchers' hypothesis that childhood conduct disorder leads to adult criminality and mental disorder. There are some weaknesses in this study, such as a biased sample by taking high-risk participants and relying on adults' self-reports of child behavior. It is uncertain whether childhood conduct problems are associated with adult deviance due to the sample used. The norms for this study were good because they were established for the norms of Sweden.