Which of the following is implemented in an experiment to reduce unknown systematic biases due to confounding variables that might otherwise exist between treatment groups?
A)Randomization
B)Blocks
C)Repeated measures
D)All of the above

Question

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The Answer of Which of the following is implemented in an experiment to reduce unknown systematic biases due to confounding variables that might otherwise exist between treatment groups?
A)Randomization
B)Blocks
C)Repeated measures
D)All of the above

Which of the Following Is Implemented in an Experiment to Reduce