When was Bowlby born?
John Bowlby
One of Bowlby's main findings through his research with these children was that 17 out of the 44 thieves experienced early and prolonged separation (six months or more) from their primary caregiver before the age of five.[12] In comparison, only two out of the 44 children who did not steal had experienced prolonged separation from their primary care giver before the age of five.[12] More specifically, Bowlby found that 12 out of the 14 children were categorized as affectionless were found to have experienced complete and prolonged separation before the age of five.[12] These findings were important and brought more attention to the impact of a child's early environmental experiences on their healthy development.