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Sandra Scarr

1936 – 2021

American psychologist

Psychologist Behavior geneticist
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About Sandra Scarr

Lived 1936 – 2021 (aged 85). Sandra Scarr was an American psychologist and behavior geneticist, known for Heritability of IQ and Race and intelligence.

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. She demonstrated a successful intervention in premature infants, showing that stimulation improved their health and developmental outcomes.

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, which some have argued suggests 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." 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). its results had seen some replication.

Research awards Scarr was honored by her colleagues with research awards: Distinguished Contributions to Research on Public Policy (American Psychological Association), James McKeen Cattell Award (Association for Psychological Science), and the Dobzhansky Award for Lifetime Achievement (Behavior Genetics Association). She was elected a Fellow of the American Academy of Arts and Sciences, American Association for the Advancement of Science, and other scientific societies. Scarr served as president of the Society for Research in Child Development, the Association for Psychological Science, the Council of Graduate Departments of Psychology, and the Behavior Genetics Association. She was elected to the American Psychological Association's Board of Directors in 1988, but resigned in 1990. Scarr was also a founding member of the American Psychological Society (now the Association for Psychological Science) and was chief executive officer of KinderCare Learning Centers from 1995 to 1997. Scarr wrote a mixed review of The Bell Curve, agreeing with the general presentation of the data, disagreeing about some specific issues of interpretation, and disapproving of the book's policy recommendations. Scarr also disapproved of Hans Eysenck's book Race, Intelligence and Education, which she described as "generally inflammatory" and insulting to "almost everyone except WASPs and Jews".

In 1991, together with Claire Ernhart, Scarr was involved as an expert witness on behalf of the lead industry in the lawsuit United States v. Sharon Steel Corp., on the opposite side of Herbert Needleman who was testifying for the U.S. Justice Department owing to his research on the relationship between lead exposure and IQ. The federal court asked Scarr and Ernhart to examine the research of Herbert Needleman to determine whether or not it supported his claims. After reviewing his data collection and analyses, Scarr and Ernhart filed charges of scientific misconduct against Needleman with the National Institutes of Health. NIH forwarded the complaint to the University of Pittsburgh, which found that Needleman did not "fabricate, falsify or plagiarize", but a Preliminary Inquiry Panel said it could not exclude the possibility that "misrepresentation" had occurred. When the trial was declared open to the public, Scarr initially refused to come and later when she was persuaded she constantly refused to answer questions. Scarr received money from the lead industry for consulting services which creates a conflict of interest.

Retirement Scarr retired to Hawaii in 1997, where she learned scuba diving, even obtaining a rescue diver certification. She also traveled "a lot, especially on cruise ships".

Death

Scarr died on October 8, 2021, in Holualoa, Hawaii.

Publications Scarr S. Understanding Development. Harcourt (1986) Scarr S. Understanding Psychology. Random House Inc (T); 5th edition (1987). Scarr S. Socialization (Merrill sociology series). C. E. Merrill Pub. Co (1973). Lande JS, Scarr S. Caring for Children: Challenge to America. Lea (1989). Scarr S. Mother care/other care (A Pelican book). Penguin Books; 2nd ed edition (1987). Scarr S. Psychology and Children: Current Research and Practice. Amer Psychological Assn; Reprint edition (1979). Scarr S. Genetic effects on human behavior: Recent family studies (Master lectures on brain-behavior relationships). American Psychological Association (1977). ASIN: B0006Y2RV0 Scarr S. Genetics and the development of intelligence. University of Chicago Press (1975).

Publications about Scarr

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Important facts

Birth century
Nationality
Known for
Heritability of IQ, Race and intelligence
Education
Harvard University, Vassar College
Awards
Fellow of the American Association for the Advancement of Science; Fellow of the American Academy of Arts and Sciences; James McKeen Cattell Fellow Award
Also known as
Sandra Wood Scarr

People in Sandra Scarr's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Sandra Scarr's

Frequently asked questions

Who was Sandra Scarr?

American psychologist (1936–2021)

When was Sandra Scarr born?

Sandra Scarr was born on 8 August 1936 in Washington, D.C..

When did Sandra Scarr die?

Sandra Scarr died on 8 October 2021 in Holualoa.

What was Sandra Scarr's occupation?

Sandra Scarr was a psychologist and behavior geneticist.

What was Sandra Scarr known for?

Sandra Scarr was known for Heritability of IQ and Race and intelligence.

What nationality was Sandra Scarr?

Sandra Scarr was American.

Sources & further reading

· Wikipedia: Sandra Scarr

· Wikidata: Q3471944

· DBpedia: Sandra Scarr

Cite this page

APA: Biography.guide. (2026). Sandra Scarr. https://biography.guide/sandra-scarr/

MLA: "Sandra Scarr." Biography.guide, https://biography.guide/sandra-scarr/.

Chicago: "Sandra Scarr." Biography.guide. https://biography.guide/sandra-scarr/.

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