Jacobs XYY study Flashcards
what is another possible genetic cause of criminality?
XYY chromosomes
- abnormality pf sex chromosomes
what do individuals with XYY syndrome look like?
. very tall
. strong build
what is the personality and character traits of an individual with XYY syndrome?
. low intelligence
Jacob claimed they were more
. aggressive
. violent
what is a case example of Jacob’s XYY study?
studies on imprisoned criminals
what did studies on imprisoned criminals find?
imprisoned criminals had a higher than average proportion of XYY syndrome than the rest of the population
what was the history of these imprisoned criminals?
(Jacob’s XYY study)
many had histories with aggression and violent assault
what was the mentality and character traits of these imprisoned criminals found to be?
(Jacob’s XYY study)
more
. immature
. unstable
due to imprisoned criminals nature to be more immature and unstable what types of crimes did that lead to them committing?
(Jacob’s XYY study and imprisoned criminals studies)
strong tendencies to commit seemingly motiveless property crimes