Life expectancy plays an important role in influencing sociocultural milestones. A century ago, life expectancy was much shorter and infant mortality was high. This was partly a reason why people married much earlier and had many children. Today, with increasing life expectancy, adolescence has extended and people are getting married and having children at a much later age. Explain how the human life expectancy increasing to 180 years will likely influence sociocultural norms.

Psychologists have conducted more research on language comprehension than on language production. Which of the following students provides the best explanation for this discrepancy?

a. Tina: "Psychologists find language comprehension to be more interesting from the perspective of social interactions." b. Nayan: "Researchers find it easier to conduct research on language comprehension, because they can easily vary the material that participants hear or see." c. Garth: "Researchers in the discipline of speech therapy have already conducted the relevant research on language production." d. Louise: "Language production was the major topic of research just after the cognitive approach became popular; in the last decade, language comprehension has become the major topic of research."

The person who remains neutral in a conflict but renders a binding solution to the conflict is known as a(n)

a. mediator b. mindguard c. arbitrator d. negotiator