[citation needed] She demonstrated a successful intervention in premature infants, showing that stimulation improved their health and developmental outcomes.
[3][4][5][6] 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 Scarr's words: "Rather than the home environment having a cumulative impact across development, its influence wanes from early childhood to adolescence."
[7] In 1990, Scarr was invited to join the Board of the KinderCare Learning Centers, the nation's largest child care company.
In 1997, KinderCare was bought by Kohlberg, Kravitz, and Roberts Investments, and Scarr retired In 1991, together with C. Randy Gallistel she co-founded the journal Current Directions In Psychological Science.
[7] In 1995, she was a signatory of a collective statement titled "Mainstream Science on Intelligence", written by Linda Gottfredson and published in The Wall Street Journal.
[11] 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.
[12] 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".
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",[14] but a Preliminary Inquiry Panel said it could not exclude the possibility that "misrepresentation" had occurred.