A researcher randomly divides two groups of people

Reference no: EM13666676

What is wrong with this experiment: A researcher randomly divides two groups of people, one that would be receiving an experimental shot and the other receiving a placebo shot. Every week these people were evaluated by researchers who knew what group each person was in.

This experiment has no placebo.
This experiment has no control group.
This experiment has Evaluator Bias.
This experiment has Subject Bias.
This experiment uses a Non-Randomized Control.

Reference no: EM13666676

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