his research with these children was that 17 out of the 44 thieves experienced early and prolonged separation from their primary carer before the age of five and 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. These findings were important and brought more attention to the impact of a child’s early environmental experiences on their healthy development.
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Bowlby recorded all his findings in a book which was later published
Bowlby's attachment theory explains the following
Children between 6 and about 30 months are very likely to form emotional attachments to familiar caregivers, especially if the adults are sensitive and responsive to child communications.
The emotional attachments of young children are shown behaviourally in their preferences for particular familiar people, their tendency to seek proximity to those people, especially in times of distress, and their ability to use the familiar adults as a secure base from which to explore the environment.
The formation of emotional attachments contributes to the foundation of later emotional and personality development, and the type of behaviour toward familiar adults shown by toddlers has some continuity with the social behaviours they will show later in
life.
Events that interfere with attachment, such as abrupt separation of the toddler from familiar people can have a large impact on a child later in life