Researchers at the University of Illinois assessed 33 month old children on how secure their attachment was.
They also asked parents to rate their child’s temperament including anger management and social fearfulness.
Six months later children of the same gender were randomly paired and observed on three occasions over a month.
The researchers found that the securely attached children were more responsive to their new partner and more likely to use suggestions and requests than commands to get what they wanted.
When paired with anger-prone children the securely attached children adapted their behaviour to become more controlled.
Published in Developmental Psychology June 2014