Longitudinal Studies of Changes in Intelligence Over the Life-Span Paint

Multiple Choice

Longitudinal studies of changes in intelligence over the life-span paint a more accurate picture of reality than do cross-sectional studies because

A) longitudinal studies require more time to conduct and therefore researchers can make a more careful analysis of the important variables that influence development.
B) cross-sectional studies do not take into consideration the fact that older people have had different educational and cultural experiences than younger people have had.
C) cross-sectional studies tend to be conducted with biased samples.
D) in cross-sectional studies older people can be intimidated by the presence of younger people.
E) none of the above.