According to Robert Sternberg, who developed the _____________, intelligence consists of three components

Most developmental psychology studies use either longitudinal or cross-sectional research designs. Describe how a developmental psychologist could use a longitudinal design to study changes in fluid and crystallized intelligence as adults age

Then describe a similar cross-sectional study. Based on what you read about longitudinal and cross-sectional studies in Chapter 2 (How Psychologists Do Research), is it possible that the cross-sectional and longitudinal studies you propose could find conflicting results? If so, explain how. What will be an ideal response?

Surrogate motherhood

A) is the least controversial form of medically assisted conception. B) usually involves the wealthy as contractors for infants and the less economically advantaged as surrogates. C) arrangements rarely proceed smoothly. D) is illegal in most U.S. states.