Exam 7: Asking People About Themselves: Survey Research

A professor of mathematics wants to study how the students in his college perceive the subject. He walks into the college cafeteria and starts asking the students present there if they like mathematics. Which sampling technique is used by the professor in this scenario?

Researchers are often not worried about obtaining random samples from the "general population" for their research because:

In which sampling technique do researchers choose a sample that reflects the numerical composition of various subgroups in a population?

"Are you in favor of programs designed to help lower the unreasonably high rent in the county?" is an example of a _____ question.

The city council wants to examine the citizens' opinions about allowing dogs at the city's beaches. It prepares a list of all the blocks in the city and randomly selects 20% of the blocks to sample. It then surveys all residents of the selected city blocks. Which of the following sampling techniques does this sampling strategy exemplify?

The head of the psychology department in a university is interested in finding the attitudes of her students toward implementing an internship as a requirement for completion of the degree. She obtains a list of all students who are psychology majors, randomly selects 100 students from the list, and surveys those who are selected. What type of sampling technique has she employed?

Keziah stands outside a grocery store on the west side of the town and surveys exiting shoppers about their preference in frozen desserts. What type of sampling technique does Keziah's survey represent?