Social Variables Researchers Implanted Electrical Devices into Patients Diagnosed with Congestive

question 36

Multiple Choice

Social Variables Researchers implanted electrical devices into patients diagnosed with congestive heart failure.They randomly assigned patients to either an experimental condition (device turned on) or control condition (device turned off) for 6 months.Neither the subjects nor the supervising physicians knew their treatment condition until the study ended.Which design did these researchers use?

• A)double-blind experiment
• B)ex post facto study
• C)pretest/posttest
• D)single-blind experiment

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Customized contracts between two parties to buy or sell an asset at a specified price on a future date.

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Financial agreements between two parties to exchange cash flows or other financial instruments over a specified period.