▲ What consequence does intellectual damage have on development?
Abnormally low IQ
● What kind of damage did Bowlby say could result from deprivation?
Psychological damage
▲ How does maternal deprivation affect the internal working model?
Prevents development of a positive model
✪ Why might Bowlby’s 44 thieves study lack internal validity?
It relied on retrospective data from parents, who may have lied or misremembered
▲ What does Bowlby believe is inevitable without care during the critical period?
Psychological damage
● What is Bowlby’s 44 juvenile thieves study?
A study linking prolonged separation with affectionless psychopathy
▲ How does emotional deprivation relate to criminal behaviour?
Through affectionless psychopathy
✪ Why is the concept of irreversibility in Bowlby’s theory criticised?
Later research shows recovery is possible with intervention
▲ What did Bowlby find in those diagnosed with affectionless psychopathy?
They had experienced long separations
▲ What does Bowlby say about the reversibility of deprivation effects?
They are irreversible
● What did Goldfarb compare?
Institutionalised children and fostered children
✪ How does Bowlby’s 44 thieves study support maternal deprivation theory?
It showed a link between early separations and affectionless psychopathy
▲ What type of sampling did Bowlby use in the 44 thieves study?
Opportunity sampling
✪ How might Bowlby’s theory of maternal deprivation reduce criminal behaviour?
By encouraging early interventions to prevent affectionless psychopathy
▲ What did Bowlby do in the 44 juvenile thieves study?
Interviewed thieves and their parents
● What behaviour is linked to affectionless psychopathy?
Lack of remorse and criminality
✪ What practical applications arise from Bowlby’s theory of maternal deprivation?
Changes in hospital policies to allow parental stays and visits
✪ How does Bowlby’s theory contribute to applied psychology?
It helped identify the importance of early care in preventing long-term issues
● What is maternal deprivation?
The emotional and intellectual consequences of extended separation
✪ What societal change resulted from Bowlby’s work?
Hospitals now allow parents to stay with children to prevent deprivation
✪ How does Lewis’s study contradict Bowlby’s findings?
She found no link between prolonged separation and criminality in a larger sample
● Who found evidence of lower IQ in institutionalised children?
Goldfarb
✪ What limitation is associated with Bowlby’s interpretation of data?
Possible confirmation bias in recording findings supporting his theory
✪ What is a key criticism of Bowlby’s study design?
Used opportunity sampling and Bowlby conducted interviews himself, introducing bias