How do demographers measure the rate at which a population is growing?
a. by adding the birth rate to the infant mortality rate
b. by subtracting the infant mortality rate from the birth rate
c. by comparing the birth and death rates
d. by counting the number of people in a given area

Recall that in one condition of the experiment conducted by stasser and titus (1985) about student council president candidates, all group members had access to the same information, and that in another condition, members had unique information that other group members didn't know. in the second (unshared information) condition, the group made a worse decision than in the first (shared information) condition. this occurred because groups seldom can agree on who is most expert. focus discussion on the information that all members know. often ignore dissenting opinions. avoid differences of opinion, given conformity pressures.