A behavioral geneticist would use which of the following research methods to study the influence of genetics?
A.	longitudinal studies
B.	cross-sectional studies
C.	quasi-experimental studies
D.	twin and adoption studies
Answer:D
A behavioral geneticist would use which of the following research methods to study the influence of genetics?
A.	longitudinal studies B.	cross-sectional studies C.	quasi-experimental studies D.	twin and adoption studies