Based on the Results of Cross-Sectional Intelligence Testing, _____ for the First

Multiple Choice

Based on the results of cross-sectional intelligence testing, _____ for the first half of the twentieth century.

A) younger generations were considered to be smarter than older ones
B) older generations were considered to be smarter than younger ones
C) older generations were considered to know entirely different things than younger ones
D) younger and older generations were considered equally smart