Take the study mentioned in the link bellow. It never mentions the title or premise of the quoted report.
http://www.businessweek.com/news/2010-02-26/long-time-marijuana-use-linked-to-psychosis-in-young-adults.html Seems by reading the article that the report was on young adult marijuana use. Looking at the report one finds that its a factor among young adults from abusive homes. The report was talking about abused young adults who use marijuana. Someone couldn't be this retarded on accident.
http://archpsyc.ama-assn.org/cgi/content/extract/67/2/111As the Twig Is Bent, the Tree Inclines
Adult Mental Health Consequences of Childhood AdversityJames Scott, MBBS, PhD, FRANZCP; Daniel Varghese, MBBS, FRANZCP; John McGrath, MD, PhD
Arch Gen Psychiatry. 2010;67(2):111-112.
Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.
Folk psychology has long appreciated the links between childhood trauma and both childhood and adult mental health problems. In this issue of Archives, 2 related articles from the National Comorbidity Survey Replication1 enhance this traditional wisdom with precise estimates, confidence intervals, and sophisticated modeling.2-3 Based on detailed interviews with 5692 adults, the researchers derived lifetime diagnoses for a range of mental health disorders. In addition, the respondents were asked to recall if they had been exposed to 12 different stressors prior to the age of 18 years. The prevalence of childhood adversities (CAs) was high—about half of all respondents endorsed at least 1 CA. The CAs were also highly intercorrelated.
Factor analysis grouped the CAs into those reflecting maladaptive family functioning (parental mental illness, parental substance abuse, criminal behavior, domestic violence, physical abuse, sexual abuse, and