Q.

Which of the following techniques yields a simple random sample?

A. Choosing volunteers from an introductory psychology class to participate
B. Listing the individuals by ethnic group and choosing a proportion from within each ethnic group at random.
C. Numbering all the elements of a sampling frame and then using a random number table to pick cases from the table.
D. Randomly selecting schools, and then sampling everyone within the school
Answer» C. Numbering all the elements of a sampling frame and then using a random number table to pick cases from the table.
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