Appreciation of __________ enables children to pinpoint the reasons that another person arrived at a certain belief

When conducting survey research, why would one need to make sure the sample is "stratified"?

a. Because random sampling is problematic b. To correspond properly to ethnographic research c. As a symbol of quantitative investigations d. To fairly represent the population of interest

If a researcher doing single-subject research wants to investigate several different behaviors, the design would be called

a. a retrospective study. b. a case study. c. a multiple baseline study. d. an N of 1 randomized clinical trial.