Which of the following is an example of “type technique” of variation of the independent variable?
a. All participants’ reaction times are measured after being given a drug
b. In a study of success in passing the bar, one group studied independently, another as a group, and a third paid for a review class
c. The control group got no study aids, one experimental group got a graphic organizer, and a second experimental group got copies of the teacher’s notes
d. An experimental group had a review session before taking a test and the control group took the test when the unit was complete
Ans: b
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