Why is it important to choose a representative sample of the population?

The approach to research in which investigators record behavior exactly as it occurs, attempting to avoid interpretation, is called

a. subject reactivity. b. observational research. c. anthropomorphic research. d. quasi-experimental.

SELECT ALL THAT APPLY. Which of the following groups promoted democratization in Brazil in the late 1970s and 1980s?

a. the Catholic church b. unions c. the military d. organization of American states