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There is evidence that children who experience severe psychosocial deprivation early on have better cognitive abilities than children
in family settings.
Cognitive functions, including IQ, are associated
with a range of life outcomes, including academic achievement and financial success.
The study, Kathryn L Humphreys, and others in the Department of Psychology and Human Development at Vanderbilt University in Nashville, analyzed longitudinal data from the Bucharest Early Intervention Project, a randomized controlled trial that used foster care as an alternative
to institutional care after being exposed to severe psychosocial deprivation.
The study reported data
on 135 participants who were assessed in early adulthood (18 years of age).
Figure 1.
Figure 2: Quality of care in early life is a potential mechanism
to explain the effect of foster care interventions on FSIQ scores at 18 years of age.
The ITT group was associated with quality of care in early life (A), while quality of care was in turn associated with an FSIQ score (B)
at age 18 years.
Figure 3.
Mediated analysis provides evidence that the causal effects of interventions on cognitive abilities in early adulthood can be explained
in part by higher quality care and attachment security.
These findings suggest that early investment in home care as an alternative to institutional care can lead to sustained growth
in cognitive abilities.
Original source:
Humphreys KL, King LS, Guyon-Harris KL, et al.
