hat some of the results could be explained such as conduct disorder as a child might be a precursor for later deviance but it could be related to more biological reasons. The conduct disorder as a child could be caused by biological reasons therefore causing the later deviance. Kratzer, L., Hodgins, S. (1997) . Adult Outcomes of Child Conduct Problems: A Cohort Study. Journal of Abnormal Child Psychology. 25, 65-81. This study was done to look at the incidence of child conduct problems and the effects it has when the child becomes as adult. The present study tries to answer the question whether childhood conduct problems start the course for later disorders in adults. The sample was separated into three groups, those who exhibited conduct problems only at school, those who did so in the community, and those who did so in both settings. The hypothesis that the authors chose was that children with conduct problems are at high risk for major mental disorders. The authors suspect that there research will provide results proving that children with conduct problems will later develop more problems with conduct as an adult and possible major mental illnesses. The sample in this composed of all 15, 117 persons born in Stockholm in 1953 and residing there in 1963. 94% of the participants were still alive and residing in Sweden at the end of the 30 year follow up period. The participants were reported on by their teachers on a scale of three, ranging from no problems to severe problems. The measures used in this study were as follows; Mental Disorders: The Stockholm register was screened in order to document all admissions to psychiatric wards. Social Class: The social class of the individuals family of origin was indexed using Swedish norms. Pregnancy Complications; Complications during pregnancy were scored accounting their severity. Birth Complications: Any complications during birth were also scored on account of their se...
