Using the Child Behavior Checklist (CBCL), the rate and type of
behavior problems associated with being reared in an institution prior to
adoption were examined in 1,948, 4- through 18-year-old internationally
adopted children, 899 of whom had experienced prolonged institutional care
prior to adoption. The children's adoptions were decreed between 1990
and 1998 in Minnesota. Binomial logistic regression analyses revealed that
early institutional rearing was associated with increased rates of
attention and social problems, but not problems in either the
internalizing or externalizing domains. Independent of institutional
history, children who were adopted ≥24 months had higher rates of
behavior problems across many CBCL scales, including internalizing and
externalizing problems. In general, time in the adoptive home, which also
reflected age at testing, was positively associated with rates of problem
behavior. Thus, there was little evidence that the likelihood of behavior
problems wane with time postadoption. Finally, children adopted from
Russia/Eastern Europe appeared at greater risk of developing behavior
problems in several domains compared to children adopted from other areas
of the world.Members of the International
Adoption Project (IAP) Team, all of whom are from the University of
Minnesota, are H. Grotevant (Family Social Science); R. Lee (Psychology);
W. Hellerstedt (Epidemiology); N. Madsen and M. Bale (Institute of Child
Development); and D. Johnson, K. Dole, and S. Iverson (Pediatrics). This
research was supported by an NIMH grant (MH59848) and K05 award (MH66208)
to M. R. Gunnar. The authors thank the IAP parent board, the Minnesota
Adoption Unit and its director, Robert DeNardo, and the adoption agencies
that encouraged this work: Children's Home Society, Lutheran Social
Services, Crossroads, Hope International, Bethany International, Child
Link International, European Children Adoption Services, International
Adoption Services, Great Wall China Adoption, and New Horizons. Special
thanks are due to the many parents who completed the IAP
survey.