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15 Which of the following is a true statement about experimental design A Replication is...

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15 Which of the following is a true statement about experimental design A Replication is a key component in experimental design Thus an experiment needs to be conducted on repeated samples before generalizing results B Control is a key component of experimental design Thus a control group that receives a placebo is a requirement for experimentation C Randomization is a key component in experimental design Randomization is used to reduce bias D Blocking eliminates the effects of all lurking variables E The placebo effect is a concern for all experiments

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