Question

Scarr and Weinberg (1976) offered evidence for a(n) _____ basis of intelligence. They showed that black and interracial children adopted by white families scored above the IQ and school achievement means for whites.

Answer 1

environmental

Step-by-step explanation:

Environmental basis of intelligence: Scarr & Weinberg in 1976, have studied different racial groups and the differences in their IQ. They identify that cross-racial adoption possesses a positive influence on the black adopted children.

Genetic susceptibility plays an important role in the development of IQ of an individual, however other environmental factors are also important in determining the IQ of a person including nutrition, education, mental illnesses, premature birth, etc.