to see how adoptive parents treat inherited characteristics of adoptive children.
leve - sample.
sample of 360 adoptive triads - adoptive child, adoptive parents and biological parents. done over 10 different states.
leve - procedure.
looked at child's behaviour in terms of factors like school performance, social ability and ability to express emotion or concern.
leve - findings.
found as early as age 2 and a half a child can show precursors to aggression. also found that mums had much more influence on the child's ability to regulate their emotions than their dad - suggest environmental influence and nurture debate.
leve - g.
adoptive child so difficult and busy life - may have had other adoptive families that gave them back. but done across 10 states and is a large sample!
leve - r.
yes very replicable. risk of researcher bias as they may observe something more or less aggressive.
leve - a.
identifying aggression early in childhood to prevent it from worsening and become life impacting.
leve - v.
natural experiment so ecologically valid. lack of internal validity as no iv is being manipulated however. researcher/social desirability bias.
leve - e.
fairly ethical but socially sensitive as it involves participation of biological parents (reasons why they left them like addiction etc).