What is the experimental condition that we must worry about the most in terms of the personal effect?
A) If each treatment is administered by a different person.
B) If each treatment is administered by the same person.
C) If the person administering the treatments is also the person responsible for randomly assigning participants to the treatments.
D) If the person testing the results also knows who is in the experimental group and who is in the control group.

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The Answer of What is the experimental condition that we must worry about the most in terms of the personal effect?
A) If each treatment is administered by a different person.
B) If each treatment is administered by the same person.
C) If the person administering the treatments is also the person responsible for randomly assigning participants to the treatments.
D) If the person testing the results also knows who is in the experimental group and who is in the control group.

What Is the Experimental Condition That We Must Worry About