Effectiveness vs efficacy activity

A new plant discovered in campus wetland; does it help UWB students “feeling down”?

Design two contrasting studies. One to determine if it is efficacious, the other to determine if it is effective.

Consider the following in your design (don’t worry so much about technical research design, just general info below to illustrate contrasting ideas of efficacy versus effectiveness.

How would you test plant?
Who would it be tested on?
How would it be administered?

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