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39. To investigate the effects of a particular study method on student performance, two different methods are tried, each with a different group of subjects. If only the experimenter knows which method is under investigation, the procedure being used

 

Aamir Ranjha
(@aamir)
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To investigate the effects of a particular study method on student performance, two different methods are tried, each with a different group of subjects. If only the experimenter knows which method is under investigation, the procedure being used is described as

  1. double-blind.
  2. single-blind.
  3. self-fulfilling prophesy.
  4. representative sampling.

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Answer
2. Single-Blind


   
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