In 1957 Anne wrote a book called "Psychological Review" and said "heredity and environment are inseparable because there would be no one in an environment without heredity and there would be no place to see the effects of heredity without environment". Anne refined her theory on Heredity and Environment and wrote a paper to the American psychological association to talk about how genes and environment effect psychological testing and what future actions should be taken. She talks about how the past research on heredity and environment has been lacking because of faulty research.