研究人员Pratt et al .(2002)能够识别出诸如反社会人格、ADHD及其他的其他子分类，这些疾病将会遗传下来。环境的影响也被认为是一个重要的影响因素。研究表明，在父母有犯罪记录的家庭中，大约有三分之二的青少年犯罪行为。正如Siegel & Senna(2004)所言，当一个生父是罪犯的时候，孩子也有很大的机会成为罪犯。像ghodsian – carpey和Baker(1987)这样的研究人员进行了研究，他们观察到在攻击中有很高的遗传性影响。观察到高相关性。另一方面，像Rushton、Fulker、Neale、Nias & Eysenck(1986)等研究人员强调，并不是所有的孩子都会表现出行为障碍。有些人可能会学会发展他们的侵略性倾向，因此从童年时期的侵略到犯罪的途径可能会减少。由于这些研究工作都是过去的，这项研究将集中在相关性的比较讨论上。儿童时期的攻击性和成年期的犯罪倾向之间没有相关性，这是基于目前更多的研究工作。
Researchers Pratt et al., (2002) were able to identify that disorders like antisocial personalities, ADHD and its other sub classifications which will be passed down genetically. The influence of environment has been admitted as a significant influence, too. Studies cite that around two-thirds of juvenile delinquency was observed in families where parents had a criminal record. As Siegel & Senna (2004) argued, when a biological father was a criminal, there were high chances for the child to be a criminal, too. Researchers like Ghodsian-Carpey and Baker (1987) performed studies where they observed a high amount of heritable influence in aggression. A high degree of correlation was observed. Researchers like Rushton, Fulker, Neale, Nias & Eysenck, (1986) on the other hand highlighted that not all children would display a behavioural disorder. Some might learn to grow out their aggressive tendencies and hence the pathway from childhood aggression to criminality might be reduced. As much of these research works are from the past, this research will focus on a comparative discussion of correlation. No correlation is between childhood aggression and criminal tendencies in adulthood, which is based on more current research works.