What does the chi-square test compare?

An anthropologist wrote a story on her observations of young boys jumping off tree limbs with thick vines attached to their feet. What is the likely significance of such observations for the study of developmental psychology?

a) The story described a rite of passage into adulthood. b) In some cultures, this educational experience is considered necessary for survival. c) The young boys are required to compete with one another in order to see who will be the group leader. d) Regardless of where you are on the globe, males tend to engage in more risky behaviors than do females.

The main idea that defines this perspective is that people change in predictable ways as the influences of heredity and environment unfold over time:

a. engineering b. sociocultural c. developmental d. structuralist e. humanistic