An instructor wants to determine if giving essay tests increases student learning one class that the instructor teaches she continues to test as she has always done In another class she gives the students essay s She then measures the differences in learning if any between the two classes The class that is given essay s is the_______________?

An instructor wants to determine if giving essay tests increases student learning one class that the instructor teaches she continues to test as she has always done In another class she gives the students essay s She then measures the differences in learning if any between the two classes The class that is given essay s is the_______________?

A. control group
B. representative group
C. experimental group
D. correlation group

Which of the following would be an example of a random sample? A researcher_________________?

Which of the following would be an example of a random sample? A researcher_________________?

A. administers a naira to every fifth woman who enters a business office
B. examines the attitudes of residents of a city by interviewing every twentieth name in the city,s telephone book
C. studies the attitudes of Democratic voters by choosing every tenth name found on a city,s list of registered Democrats
D. None of the above