Research Involving Family and Adoption Studies Have Demonstrated That

Multiple Choice

Research involving family and adoption studies have demonstrated that

A) siblings reared together and cousins reared together have similar IQ correlations.
B) the correlations between the IQ scores of cousins reared together are very strong.
C) the correlations between the IQ scores of cousins reared together are negative.
D) the higher the percentage of shared genes between people,the higher their IQ correlations will be.