PJ conducts an experimental study on the effects of soft music during high stake

Question

PJ conducts an experimental study on the effects of soft music during high stakes science testing. He randomly assigns students at the school. In one condition he does not provide music for testing while in the other group he does provide the music. He administers a pretest at the beginning of the year and a posttest at the end of the year. PJ’s design is best described as a:

A.Static group comparison

B. Pretest-posttest control group design

C.Control-group-time-series design

D. Nonrandomized control-group pretest-posttest design

Explanation / Answer

B) Pretest_Posttest control group design

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