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Sandra Scarr
Sandra Wood Scarr (August 8, 1936 – October 8, 2021) was an American psychologist and writer. She was the first female full professor in psychology in the history of Yale University. She established core resources for the study of development, including the Minnesota Transracial Adoption Study and the Minnesota Adolescent Adoption Study. She served as president of multiple societies including the Association for Psychological Science and was honored with multiple awards including the James McKeen Cattell Fellow Award. She was also active in the development of commercial childcare. Her work with twins in the 1960s revealed strong genetic influences on intellectual development. One of her key findings was that this differed with race and socioeconomic status (SES), with poor and non-white children showing less genetic influence on their IQ and more environmental influence.[citation needed] She demonstrated a successful intervention in premature infants, showing that stimulation improved their health and developmental outcomes.[citation needed]
At Minnesota, she and Richard A. Weinberg found that black and interracial children adopted early into white homes initially had outcomes more similar to the white average, suggesting a role of family environment early in life. By their teens, adoptees with two black birth parents achieved lower scores than did adoptees with one or no black birth parents, suggesting a genetic component to race differences in IQ.
Along with the Scarr-Rowe effect of socio-economic status on the heritability of intelligence, another key intellectual landmark established by Scarr was that "Rather than the home environment having a cumulative impact across development, its influence wanes from early childhood to adolescence." She sought also to advance scientific psychology, and in 1991 co-founded Current Directions In Psychological Science. She retired to Hawaii.
Scarr was the child of school teacher Jane Powell Wood and John Ruxton Wood, a US Army physician, who in 1942 was appointed director of Army Research Laboratories at Edgewood Arsenal and who in 1950 headed the Walter Reed Army Institute of Research. Scarr spent most of her childhood in the Chesapeake Bay area and went to the Bryn Mawr School for Girls and the National Cathedral School. After completing her undergraduate studies at Vassar College in 1958, where she was involved in undergraduate research with Harriet Zuckerman, Scarr worked for a couple of years first at a family and child service and then at National Institute of Mental Health as a research assistant. In 1960 she enrolled at Harvard University, from where she earned her Ph.D. in psychology in 1965, specializing in developmental psychology and behavioural genetics. During graduate school, she married fellow sociology student Harry Scarr with whom she has a son, Phillip (1962).
Though she initially had a difficult time finding a job because she had a child,[citation needed] she eventually taught at the University of Maryland, the University of Pennsylvania, the University of Minnesota, and Yale University. She was the first woman full professor in psychology in the history of Yale University. In 1983, she accepted a position as Commonwealth Professor and chair of the psychology department at the University of Virginia, where she remained until her retirement.
In the 1960s, Scarr studied identical and fraternal twins' aptitude and school achievement scores. The study revealed that intellectual development was heavily influenced by genetic ability, especially among more advantaged children. It also showed that on average, black children demonstrated less genetic and more environmental influence on their intelligence than white children. Scarr also collaborated with Margaret Williams on a clinical study which demonstrated that premature birth infants who receive stimulation gain weight faster and recover faster than babies left in isolation (the practice at that time).
In 1972 she married fellow researcher Philip Salapatek, with whom she also coauthored papers. They had a daughter, Stephanie (November 1973). They moved to Minnesota, where Scarr started working with Richard A. Weinberg, on the Minnesota Transracial Adoption Study. This study concluded that black and interracial children adopted early into white homes had IQ and school achievement scores that averaged similar to those of white children.
In another adoption study, Minnesota Adolescent Adoption Study, Scarr and Weinberg showed that adolescents, adopted in the first few months of life, did not resemble their adoptive parents or other children adopted into the same family. In Scarr's words: "Rather than the home environment having a cumulative impact across development, its influence wanes from early childhood to adolescence." (emphasis in original). As of 1995, the study was among the largest of its kind in the United States, together with the Colorado Adoption Project and the Texas Adoption Project; its results had seen some replication.
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Sandra Scarr
Sandra Wood Scarr (August 8, 1936 – October 8, 2021) was an American psychologist and writer. She was the first female full professor in psychology in the history of Yale University. She established core resources for the study of development, including the Minnesota Transracial Adoption Study and the Minnesota Adolescent Adoption Study. She served as president of multiple societies including the Association for Psychological Science and was honored with multiple awards including the James McKeen Cattell Fellow Award. She was also active in the development of commercial childcare. Her work with twins in the 1960s revealed strong genetic influences on intellectual development. One of her key findings was that this differed with race and socioeconomic status (SES), with poor and non-white children showing less genetic influence on their IQ and more environmental influence.[citation needed] She demonstrated a successful intervention in premature infants, showing that stimulation improved their health and developmental outcomes.[citation needed]
At Minnesota, she and Richard A. Weinberg found that black and interracial children adopted early into white homes initially had outcomes more similar to the white average, suggesting a role of family environment early in life. By their teens, adoptees with two black birth parents achieved lower scores than did adoptees with one or no black birth parents, suggesting a genetic component to race differences in IQ.
Along with the Scarr-Rowe effect of socio-economic status on the heritability of intelligence, another key intellectual landmark established by Scarr was that "Rather than the home environment having a cumulative impact across development, its influence wanes from early childhood to adolescence." She sought also to advance scientific psychology, and in 1991 co-founded Current Directions In Psychological Science. She retired to Hawaii.
Scarr was the child of school teacher Jane Powell Wood and John Ruxton Wood, a US Army physician, who in 1942 was appointed director of Army Research Laboratories at Edgewood Arsenal and who in 1950 headed the Walter Reed Army Institute of Research. Scarr spent most of her childhood in the Chesapeake Bay area and went to the Bryn Mawr School for Girls and the National Cathedral School. After completing her undergraduate studies at Vassar College in 1958, where she was involved in undergraduate research with Harriet Zuckerman, Scarr worked for a couple of years first at a family and child service and then at National Institute of Mental Health as a research assistant. In 1960 she enrolled at Harvard University, from where she earned her Ph.D. in psychology in 1965, specializing in developmental psychology and behavioural genetics. During graduate school, she married fellow sociology student Harry Scarr with whom she has a son, Phillip (1962).
Though she initially had a difficult time finding a job because she had a child,[citation needed] she eventually taught at the University of Maryland, the University of Pennsylvania, the University of Minnesota, and Yale University. She was the first woman full professor in psychology in the history of Yale University. In 1983, she accepted a position as Commonwealth Professor and chair of the psychology department at the University of Virginia, where she remained until her retirement.
In the 1960s, Scarr studied identical and fraternal twins' aptitude and school achievement scores. The study revealed that intellectual development was heavily influenced by genetic ability, especially among more advantaged children. It also showed that on average, black children demonstrated less genetic and more environmental influence on their intelligence than white children. Scarr also collaborated with Margaret Williams on a clinical study which demonstrated that premature birth infants who receive stimulation gain weight faster and recover faster than babies left in isolation (the practice at that time).
In 1972 she married fellow researcher Philip Salapatek, with whom she also coauthored papers. They had a daughter, Stephanie (November 1973). They moved to Minnesota, where Scarr started working with Richard A. Weinberg, on the Minnesota Transracial Adoption Study. This study concluded that black and interracial children adopted early into white homes had IQ and school achievement scores that averaged similar to those of white children.
In another adoption study, Minnesota Adolescent Adoption Study, Scarr and Weinberg showed that adolescents, adopted in the first few months of life, did not resemble their adoptive parents or other children adopted into the same family. In Scarr's words: "Rather than the home environment having a cumulative impact across development, its influence wanes from early childhood to adolescence." (emphasis in original). As of 1995, the study was among the largest of its kind in the United States, together with the Colorado Adoption Project and the Texas Adoption Project; its results had seen some replication.