In the diffusion of treatment effect neither the experi menters nor the subjects are aware of what group is the treatment group.

Question

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In the diffusion of treatment effect, the concern is about the treatment effect spreading from the treatment group to the control group, not about the experimenters or subjects being unaware of group assignments. Being unaware of group assignments refers to blinding or double-blinding in experiments.

In the Diffusion of Treatment Effect Neither the Experi Menters