Quality of attachment changes during adolescence, and these changes are influenced by both gender of the adolescent and gender of the attachment figure. (link.springer.com)
, 1985, The relationship of quality of attachment and behavior problems in preschool in a high risk sample (dbpia.co.kr)
Only Howes and Segal (1993) reported on the effect of number of previous placements on quality of attachment, finding no significant effect. (link.springer.com)