Orphanages Stunt Mental Growth, a Study Finds

By Benedict Carey, The New York Times

Published: December 21, 2007

Psychologists have long believed that growing up in an institution like an orphanage stunts children’s mental development but have never had direct evidence to back it up.

Now they do, from an extraordinary years-long experiment in Romania that compared the effects of foster care with those of institutional child-rearing.

The study, being published on Friday in the journal Science, found that toddlers placed in foster families developed significantly higher I.Q.’s by age 4, on average, than peers who spent those years in an orphanage.

The difference was large — eight points — and the study found that the earlier children joined a foster family, the better they did. Children who moved from institutional care to families after age 2 made few gains on average, though the experience varied from child to child. Both groups, however, had significantly lower I.Q.’s than a comparison group of children raised by their biological families.

Some developmental psychologists had sharply criticized the study and its sponsor, the MacArthur Foundation, for researching a question whose answer seemed obvious. But previous attempts to compare institutional and foster care suffered from serious flaws, mainly because no one knew whether children who landed in orphanages were different in unknown ways from those in foster care. Experts said the new study should put to rest any doubts about the harmful effects of institutionalization — and might help speed up adoptions from countries that still allow them.

“Most of us take it as almost intuitive that being in a family is better for humans than being in an orphanage,” said Seth Pollak, a psychologist at the University of Wisconsin, who was not involved in the research. “But other governments don’t like to be told how to handle policy issues based on intuition.

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