Response to the following problem:
Dr. Cardenas studied political attitudes among different groups of 20-, 40-, and 60-year-olds. Political attitudes were found to be most conservative in the age-60 group and least conservative in the age-20 group.
a. What type of method was used in this study?
b. Can you conclude that people become more politically conservative as they get older? Why or why not?
c. Propose alternative ways of studying this topic.